312135130 has 32 divisors (see below), whose sum is σ = 596710800. Its totient is φ = 117150720.

The previous prime is 312135121. The next prime is 312135143. The reversal of 312135130 is 31531213.

It can be written as a sum of positive squares in 8 ways, for example, as 250810569 + 61324561 = 15837^2 + 7831^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312135098 and 312135107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56700 + ... + 61960.

Almost surely, 2^312135130 is an apocalyptic number.

312135130 is a deficient number, since it is larger than the sum of its proper divisors (284575670).

312135130 is a wasteful number, since it uses less digits than its factorization.

312135130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5634.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 312135130 is about 17667.3464334631. The cubic root of 312135130 is about 678.3401920772.

Adding to 312135130 its reverse (31531213), we get a palindrome (343666343).

The spelling of 312135130 in words is "three hundred twelve million, one hundred thirty-five thousand, one hundred thirty".