312155829 has 16 divisors (see below), whose sum is σ = 462920640. Its totient is φ = 207893520.

The previous prime is 312155827. The next prime is 312155861. The reversal of 312155829 is 928551213.

It is not a de Polignac number, because 312155829 - 2¹ = 312155827 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 312155793 and 312155802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312155821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24159 + ... + 34755.

It is an arithmetic number, because the mean of its divisors is an integer number (28932540).

Almost surely, 2^312155829 is an apocalyptic number.

It is an amenable number.

312155829 is a deficient number, since it is larger than the sum of its proper divisors (150764811).

312155829 is a wasteful number, since it uses less digits than its factorization.

312155829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11697 (or 11691 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 312155829 is about 17667.9322219664. The cubic root of 312155829 is about 678.3551862810.

The spelling of 312155829 in words is "three hundred twelve million, one hundred fifty-five thousand, eight hundred twenty-nine".