70131015 has 48 divisors (see below), whose sum is σ = 127135008. Its totient is φ = 37086336.

The previous prime is 70131013. The next prime is 70131023. The reversal of 70131015 is 51013107.

It is a happy number.

It is not a de Polignac number, because 70131015 - 2¹ = 70131013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70131013) 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 47 ways as a sum of consecutive naturals, for example, 239209 + ... + 239501.

It is an arithmetic number, because the mean of its divisors is an integer number (2648646).

Almost surely, 2^70131015 is an apocalyptic number.

70131015 is a deficient number, since it is larger than the sum of its proper divisors (57003993).

70131015 is a wasteful number, since it uses less digits than its factorization.

70131015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 18.

The square root of 70131015 is about 8374.4262490036. The cubic root of 70131015 is about 412.3854888755.

The spelling of 70131015 in words is "seventy million, one hundred thirty-one thousand, fifteen".