231061153 has 4 divisors (see below), whose sum is σ = 231137280. Its totient is φ = 230985028.

The previous prime is 231061141. The next prime is 231061211. The reversal of 231061153 is 351160132.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-231061153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231061553) 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, 33313 + ... + 39646.

It is an arithmetic number, because the mean of its divisors is an integer number (57784320).

Almost surely, 2^231061153 is an apocalyptic number.

It is an amenable number.

231061153 is a deficient number, since it is larger than the sum of its proper divisors (76127).

231061153 is an equidigital number, since it uses as much as digits as its factorization.

231061153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76126.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 231061153 is about 15200.6958064425. The cubic root of 231061153 is about 613.6333837943.

The spelling of 231061153 in words is "two hundred thirty-one million, sixty-one thousand, one hundred fifty-three".