312515130 has 16 divisors (see below), whose sum is σ = 750036384. Its totient is φ = 83337360.

The previous prime is 312515129. The next prime is 312515167. The reversal of 312515130 is 31515213.

It is a junction number, because it is equal to n+sod(n) for n = 312515097 and 312515106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5208556 + ... + 5208615.

It is an arithmetic number, because the mean of its divisors is an integer number (46877274).

Almost surely, 2^312515130 is an apocalyptic number.

312515130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312515130 is an abundant number, since it is smaller than the sum of its proper divisors (437521254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312515130 is a wasteful number, since it uses less digits than its factorization.

312515130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10417181.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 312515130 is about 17678.0974655080. The cubic root of 312515130 is about 678.6153557423.

The spelling of 312515130 in words is "three hundred twelve million, five hundred fifteen thousand, one hundred thirty".