70145992 has 32 divisors (see below), whose sum is σ = 152380800. Its totient is φ = 29649024.

The previous prime is 70145989. The next prime is 70146031. The reversal of 70145992 is 29954107.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4492 + ... + 12667.

It is an arithmetic number, because the mean of its divisors is an integer number (4761900).

Almost surely, 2^70145992 is an apocalyptic number.

It is an amenable number.

70145992 is an abundant number, since it is smaller than the sum of its proper divisors (82234808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70145992 is a wasteful number, since it uses less digits than its factorization.

70145992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17245 (or 17241 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 70145992 is about 8375.3204117813. The cubic root of 70145992 is about 412.4148427824.

The spelling of 70145992 in words is "seventy million, one hundred forty-five thousand, nine hundred ninety-two".