11272501 has 2 divisors, whose sum is σ = 11272502. Its totient is φ = 11272500.

The previous prime is 11272463. The next prime is 11272519. The reversal of 11272501 is 10527211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9771876 + 1500625 = 3126^2 + 1225^2 .

It is an emirp because it is prime and its reverse (10527211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11272501 - 2⁹ = 11271989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11272601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5636250 + 5636251.

It is an arithmetic number, because the mean of its divisors is an integer number (5636251).

Almost surely, 2^11272501 is an apocalyptic number.

It is an amenable number.

11272501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11272501 is an equidigital number, since it uses as much as digits as its factorization.

11272501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 11272501 is about 3357.4545417623. The cubic root of 11272501 is about 224.2195246401.

Adding to 11272501 its reverse (10527211), we get a palindrome (21799712).

It can be divided in two parts, 1127250 and 1, that added together give a triangular number (1127251 = T₁₅₀₁).

The spelling of 11272501 in words is "eleven million, two hundred seventy-two thousand, five hundred one".