1312142425 has 48 divisors (see below), whose sum is σ = 1846310400. Its totient is φ = 916416000.

The previous prime is 1312142417. The next prime is 1312142431. The reversal of 1312142425 is 5242412131.

It is not a de Polignac number, because 1312142425 - 2³ = 1312142417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1312142425.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1269709 + ... + 1270741.

It is an arithmetic number, because the mean of its divisors is an integer number (38464800).

Almost surely, 2^1312142425 is an apocalyptic number.

It is an amenable number.

1312142425 is a deficient number, since it is larger than the sum of its proper divisors (534167975).

1312142425 is a wasteful number, since it uses less digits than its factorization.

1312142425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1229 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1312142425 is about 36223.5065254594. The cubic root of 1312142425 is about 1094.7803469535.

Adding to 1312142425 its reverse (5242412131), we get a palindrome (6554554556).

The spelling of 1312142425 in words is "one billion, three hundred twelve million, one hundred forty-two thousand, four hundred twenty-five".