11372521 has 2 divisors, whose sum is σ = 11372522. Its totient is φ = 11372520.

The previous prime is 11372483. The next prime is 11372527. The reversal of 11372521 is 12527311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5784025 + 5588496 = 2405^2 + 2364^2 .

It is a cyclic number.

It is not a de Polignac number, because 11372521 - 2¹⁷ = 11241449 is a prime.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11372492 and 11372501.

It is not a weakly prime, because it can be changed into another prime (11372527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5686260 + 5686261.

It is an arithmetic number, because the mean of its divisors is an integer number (5686261).

Almost surely, 2^11372521 is an apocalyptic number.

It is an amenable number.

11372521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11372521 is an equidigital number, since it uses as much as digits as its factorization.

11372521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 22.

The square root of 11372521 is about 3372.3168593713. The cubic root of 11372521 is about 224.8807334990.

Adding to 11372521 its reverse (12527311), we get a palindrome (23899832).

The spelling of 11372521 in words is "eleven million, three hundred seventy-two thousand, five hundred twenty-one".