12545331 has 8 divisors (see below), whose sum is σ = 17179344. Its totient is φ = 8137440.

The previous prime is 12545261. The next prime is 12545333. The reversal of 12545331 is 13354521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12545331 - 2¹⁹ = 12021043 is a prime.

It is a super-2 number, since 2×12545331² = 314770659799122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12545333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56400 + ... + 56621.

It is an arithmetic number, because the mean of its divisors is an integer number (2147418).

Almost surely, 2^12545331 is an apocalyptic number.

12545331 is a deficient number, since it is larger than the sum of its proper divisors (4634013).

12545331 is a wasteful number, since it uses less digits than its factorization.

12545331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113061.

The product of its digits is 1800, while the sum is 24.

The square root of 12545331 is about 3541.9388758136. The cubic root of 12545331 is about 232.3596470513.

Adding to 12545331 its reverse (13354521), we get a palindrome (25899852).

The spelling of 12545331 in words is "twelve million, five hundred forty-five thousand, three hundred thirty-one".