312845121 has 12 divisors (see below), whose sum is σ = 452649600. Its totient is φ = 208211640.

The previous prime is 312845119. The next prime is 312845123. The reversal of 312845121 is 121548213.

It is an interprime number because it is at equal distance from previous prime (312845119) and next prime (312845123).

It is not a de Polignac number, because 312845121 - 2¹ = 312845119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312845123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23625 + ... + 34406.

It is an arithmetic number, because the mean of its divisors is an integer number (37720800).

Almost surely, 2^312845121 is an apocalyptic number.

It is an amenable number.

312845121 is a deficient number, since it is larger than the sum of its proper divisors (139804479).

312845121 is a wasteful number, since it uses less digits than its factorization.

312845121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58636 (or 58633 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 312845121 is about 17687.4283320103. The cubic root of 312845121 is about 678.8541262472.

The spelling of 312845121 in words is "three hundred twelve million, eight hundred forty-five thousand, one hundred twenty-one".