1264142425 has 72 divisors (see below), whose sum is σ = 1979831616. Its totient is φ = 793618560.

The previous prime is 1264142401. The next prime is 1264142441. The reversal of 1264142425 is 5242414621.

It is not a de Polignac number, because 1264142425 - 2¹¹ = 1264140377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2595532 + ... + 2596018.

Almost surely, 2^1264142425 is an apocalyptic number.

It is an amenable number.

1264142425 is a deficient number, since it is larger than the sum of its proper divisors (715689191).

1264142425 is a wasteful number, since it uses less digits than its factorization.

1264142425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 675 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 1264142425 is about 35554.7806208954. The cubic root of 1264142425 is about 1081.2646436811.

The spelling of 1264142425 in words is "one billion, two hundred sixty-four million, one hundred forty-two thousand, four hundred twenty-five".