312149929 has 12 divisors (see below), whose sum is σ = 386296896. Its totient is φ = 246974832.

The previous prime is 312149927. The next prime is 312149941. The reversal of 312149929 is 929941213.

312149929 = 467² + 468² + ... + 1012².

It is not a de Polignac number, because 312149929 - 2¹ = 312149927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312149891 and 312149900.

It is not an unprimeable number, because it can be changed into a prime (312149921) 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, 130749 + ... + 133114.

It is an arithmetic number, because the mean of its divisors is an integer number (32191408).

Almost surely, 2^312149929 is an apocalyptic number.

It is an amenable number.

312149929 is a deficient number, since it is larger than the sum of its proper divisors (74146967).

312149929 is a wasteful number, since it uses less digits than its factorization.

312149929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263896 (or 263883 counting only the distinct ones).

The product of its digits is 34992, while the sum is 40.

The square root of 312149929 is about 17667.7652520063. The cubic root of 312149929 is about 678.3509124319.

The spelling of 312149929 in words is "three hundred twelve million, one hundred forty-nine thousand, nine hundred twenty-nine".