12323557 has 4 divisors (see below), whose sum is σ = 12375360. Its totient is φ = 12271756.

The previous prime is 12323551. The next prime is 12323567. The reversal of 12323557 is 75532321.

12323557 is digitally balanced in base 2, 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 12323557 - 2⁷ = 12323429 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 (12323551) 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, 25543 + ... + 26020.

It is an arithmetic number, because the mean of its divisors is an integer number (3093840).

Almost surely, 2^12323557 is an apocalyptic number.

It is an amenable number.

12323557 is a deficient number, since it is larger than the sum of its proper divisors (51803).

12323557 is an equidigital number, since it uses as much as digits as its factorization.

12323557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51802.

The product of its digits is 6300, while the sum is 28.

The square root of 12323557 is about 3510.4924156021. The cubic root of 12323557 is about 230.9822953267.

Adding to 12323557 its reverse (75532321), we get a palindrome (87855878).

It can be divided in two parts, 12323 and 557, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 12323557 in words is "twelve million, three hundred twenty-three thousand, five hundred fifty-seven".