1258424631 has 12 divisors (see below), whose sum is σ = 1818229608. Its totient is φ = 838716624.

The previous prime is 1258424593. The next prime is 1258424683. The reversal of 1258424631 is 1364248521.

It is a happy number.

1258424631 is a `hidden beast` number, since 1 + 2 + 584 + 2 + 46 + 31 = 666.

It is not a de Polignac number, because 1258424631 - 2⁹ = 1258424119 is a prime.

It is a super-2 number, since 2×1258424631² = 3167265103814972322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258444631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18696 + ... + 53538.

It is an arithmetic number, because the mean of its divisors is an integer number (151519134).

Almost surely, 2^1258424631 is an apocalyptic number.

1258424631 is a deficient number, since it is larger than the sum of its proper divisors (559804977).

1258424631 is a wasteful number, since it uses less digits than its factorization.

1258424631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38862 (or 38859 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 1258424631 is about 35474.2812612180. The cubic root of 1258424631 is about 1079.6319707952.

The spelling of 1258424631 in words is "one billion, two hundred fifty-eight million, four hundred twenty-four thousand, six hundred thirty-one".