312140325 has 48 divisors (see below), whose sum is σ = 605774720. Its totient is φ = 138827520.

The previous prime is 312140317. The next prime is 312140327. The reversal of 312140325 is 523041213.

It is not a de Polignac number, because 312140325 - 2³ = 312140317 is a prime.

It is a super-2 number, since 2×312140325² = 194863164982211250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312140327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11391 + ... + 27459.

Almost surely, 2^312140325 is an apocalyptic number.

312140325 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312140325 is a deficient number, since it is larger than the sum of its proper divisors (293634395).

312140325 is a wasteful number, since it uses less digits than its factorization.

312140325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16126 (or 16121 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 312140325 is about 17667.4934554962. The cubic root of 312140325 is about 678.3439553594.

Adding to 312140325 its reverse (523041213), we get a palindrome (835181538).

The spelling of 312140325 in words is "three hundred twelve million, one hundred forty thousand, three hundred twenty-five".