12631047 has 16 divisors (see below), whose sum is σ = 19786368. Its totient is φ = 7066080.

The previous prime is 12631019. The next prime is 12631057. The reversal of 12631047 is 74013621.

It is not a de Polignac number, because 12631047 - 2¹⁸ = 12368903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12631057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14293 + ... + 15150.

It is an arithmetic number, because the mean of its divisors is an integer number (1236648).

Almost surely, 2^12631047 is an apocalyptic number.

12631047 is a deficient number, since it is larger than the sum of its proper divisors (7155321).

12631047 is a wasteful number, since it uses less digits than its factorization.

12631047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29470.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 12631047 is about 3554.0184298903. The cubic root of 12631047 is about 232.8876456101.

Adding to 12631047 its reverse (74013621), we get a palindrome (86644668).

The spelling of 12631047 in words is "twelve million, six hundred thirty-one thousand, forty-seven".