315421029 has 48 divisors (see below), whose sum is σ = 571244544. Its totient is φ = 162928800.

The previous prime is 315421019. The next prime is 315421069. The reversal of 315421029 is 920124513.

It is not a de Polignac number, because 315421029 - 2⁴ = 315421013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 315420993 and 315421011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315421019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131172 + ... + 133554.

It is an arithmetic number, because the mean of its divisors is an integer number (11900928).

Almost surely, 2^315421029 is an apocalyptic number.

It is an amenable number.

315421029 is a deficient number, since it is larger than the sum of its proper divisors (255823515).

315421029 is a wasteful number, since it uses less digits than its factorization.

315421029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598 (or 2595 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 315421029 is about 17760.0965368998. The cubic root of 315421029 is about 680.7122216184.

The spelling of 315421029 in words is "three hundred fifteen million, four hundred twenty-one thousand, twenty-nine".