1312140025 has 12 divisors (see below), whose sum is σ = 1859490112. Its totient is φ = 899753040.

The previous prime is 1312140017. The next prime is 1312140043. The reversal of 1312140025 is 5200412131.

It is not a de Polignac number, because 1312140025 - 2³ = 1312140017 is a prime.

It is a super-2 number, since 2×1312140025² = 3443422890414001250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312139984 and 1312140011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3748797 + ... + 3749146.

Almost surely, 2^1312140025 is an apocalyptic number.

It is an amenable number.

1312140025 is a deficient number, since it is larger than the sum of its proper divisors (547350087).

1312140025 is an equidigital number, since it uses as much as digits as its factorization.

1312140025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7497960 (or 7497955 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1312140025 is about 36223.4733977845. The cubic root of 1312140025 is about 1094.7796794765.

Adding to 1312140025 its reverse (5200412131), we get a palindrome (6512552156).

The spelling of 1312140025 in words is "one billion, three hundred twelve million, one hundred forty thousand, twenty-five".