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121441253 = 647187699
BaseRepresentation
bin1110011110100…
…00101111100101
322110111212002012
413033100233211
5222042110003
620014524005
73003143063
oct717205745
9273455065
10121441253
116260667a
1234806605
131c20cc3b
14121b3033
15a9dc8d8
hex73d0be5

121441253 has 4 divisors (see below), whose sum is σ = 121629600. Its totient is φ = 121252908.

The previous prime is 121441237. The next prime is 121441259. The reversal of 121441253 is 352144121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121441253 - 24 = 121441237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121441259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93203 + ... + 94496.

It is an arithmetic number, because the mean of its divisors is an integer number (30407400).

Almost surely, 2121441253 is an apocalyptic number.

It is an amenable number.

121441253 is a deficient number, since it is larger than the sum of its proper divisors (188347).

121441253 is an equidigital number, since it uses as much as digits as its factorization.

121441253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188346.

The product of its digits is 960, while the sum is 23.

The square root of 121441253 is about 11020.0387022914. The cubic root of 121441253 is about 495.2092479958.

Adding to 121441253 its reverse (352144121), we get a palindrome (473585374).

The spelling of 121441253 in words is "one hundred twenty-one million, four hundred forty-one thousand, two hundred fifty-three".

Divisors: 1 647 187699 121441253