11523437 has 4 divisors (see below), whose sum is σ = 12024480. Its totient is φ = 11022396.

The previous prime is 11523431. The next prime is 11523439. The reversal of 11523437 is 73432511.

11523437 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11523437 - 2⁸ = 11523181 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 (11523431) 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, 250487 + ... + 250532.

It is an arithmetic number, because the mean of its divisors is an integer number (3006120).

Almost surely, 2^11523437 is an apocalyptic number.

It is an amenable number.

11523437 is a deficient number, since it is larger than the sum of its proper divisors (501043).

11523437 is an equidigital number, since it uses as much as digits as its factorization.

11523437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501042.

The product of its digits is 2520, while the sum is 26.

The square root of 11523437 is about 3394.6188298541. The cubic root of 11523437 is about 225.8711053983.

Adding to 11523437 its reverse (73432511), we get a palindrome (84955948).

It can be divided in two parts, 11523 and 437, that multiplied together give a triangular number (5035551 = T₃₁₇₃).

The spelling of 11523437 in words is "eleven million, five hundred twenty-three thousand, four hundred thirty-seven".