1318282625 has 32 divisors (see below), whose sum is σ = 1799501184. Its totient is φ = 956232000.

The previous prime is 1318282601. The next prime is 1318282627. The reversal of 1318282625 is 5262828131.

It is not a de Polignac number, because 1318282625 - 2⁸ = 1318282369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1318282627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 641099 + ... + 643151.

It is an arithmetic number, because the mean of its divisors is an integer number (56234412).

Almost surely, 2^1318282625 is an apocalyptic number.

It is an amenable number.

1318282625 is a deficient number, since it is larger than the sum of its proper divisors (481218559).

1318282625 is a wasteful number, since it uses less digits than its factorization.

1318282625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546 (or 2536 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 1318282625 is about 36308.1619611899. The cubic root of 1318282625 is about 1096.4853732315.

The spelling of 1318282625 in words is "one billion, three hundred eighteen million, two hundred eighty-two thousand, six hundred twenty-five".