312621117 has 16 divisors (see below), whose sum is σ = 446208000. Its totient is φ = 194096304.

The previous prime is 312621107. The next prime is 312621139. The reversal of 312621117 is 711126213.

It is not a de Polignac number, because 312621117 - 2⁶ = 312621053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312621107) 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 15 ways as a sum of consecutive naturals, for example, 43117 + ... + 49842.

It is an arithmetic number, because the mean of its divisors is an integer number (27888000).

Almost surely, 2^312621117 is an apocalyptic number.

It is an amenable number.

312621117 is a deficient number, since it is larger than the sum of its proper divisors (133586883).

312621117 is a wasteful number, since it uses less digits than its factorization.

312621117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93040.

The product of its digits is 504, while the sum is 24.

The square root of 312621117 is about 17681.0949038797. The cubic root of 312621117 is about 678.6920627232.

The spelling of 312621117 in words is "three hundred twelve million, six hundred twenty-one thousand, one hundred seventeen".