12958331 has 4 divisors (see below), whose sum is σ = 13405200. Its totient is φ = 12511464.

The previous prime is 12958321. The next prime is 12958339. The reversal of 12958331 is 13385921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12958331 is a prime.

It is a super-2 number, since 2×12958331² = 335836684611122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12958339) 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, 223391 + ... + 223448.

It is an arithmetic number, because the mean of its divisors is an integer number (3351300).

Almost surely, 2^12958331 is an apocalyptic number.

12958331 is a deficient number, since it is larger than the sum of its proper divisors (446869).

12958331 is an equidigital number, since it uses as much as digits as its factorization.

12958331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446868.

The product of its digits is 6480, while the sum is 32.

The square root of 12958331 is about 3599.7681869809. The cubic root of 12958331 is about 234.8819748365.

The spelling of 12958331 in words is "twelve million, nine hundred fifty-eight thousand, three hundred thirty-one".