70139592 has 24 divisors (see below), whose sum is σ = 189961590. Its totient is φ = 23379840.

The previous prime is 70139591. The next prime is 70139611. The reversal of 70139592 is 29593107.

It can be written as a sum of positive squares in only one way, i.e., 58890276 + 11249316 = 7674^2 + 3354^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70139591) 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 5 ways as a sum of consecutive naturals, for example, 487009 + ... + 487152.

Almost surely, 2^70139592 is an apocalyptic number.

70139592 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

70139592 is an abundant number, since it is smaller than the sum of its proper divisors (119821998).

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

70139592 is a wasteful number, since it uses less digits than its factorization.

70139592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974173 (or 974166 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 70139592 is about 8374.9383281311. The cubic root of 70139592 is about 412.4022997266.

The spelling of 70139592 in words is "seventy million, one hundred thirty-nine thousand, five hundred ninety-two".