70139000 has 32 divisors (see below), whose sum is σ = 164127600. Its totient is φ = 28055200.

The previous prime is 70138979. The next prime is 70139009. The reversal of 70139000 is 93107.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70139009) 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 7 ways as a sum of consecutive naturals, for example, 34070 + ... + 36069.

Almost surely, 2^70139000 is an apocalyptic number.

It is an amenable number.

70139000 is an abundant number, since it is smaller than the sum of its proper divisors (93988600).

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

70139000 is a wasteful number, since it uses less digits than its factorization.

70139000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70160 (or 70146 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 70139000 is about 8374.9029845127. The cubic root of 70139000 is about 412.4011394554.

The spelling of 70139000 in words is "seventy million, one hundred thirty-nine thousand".