70137970 has 32 divisors (see below), whose sum is σ = 145577088. Its totient is φ = 23831808.

The previous prime is 70137967. The next prime is 70137973. The reversal of 70137970 is 7973107.

It is an interprime number because it is at equal distance from previous prime (70137967) and next prime (70137973).

It is not an unprimeable number, because it can be changed into a prime (70137973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3477 + ... + 12343.

It is an arithmetic number, because the mean of its divisors is an integer number (4549284).

Almost surely, 2^70137970 is an apocalyptic number.

70137970 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70137970 is an abundant number, since it is smaller than the sum of its proper divisors (75439118).

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

70137970 is a wasteful number, since it uses less digits than its factorization.

70137970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8994.

The product of its (nonzero) digits is 9261, while the sum is 34.

The square root of 70137970 is about 8374.8414910373. The cubic root of 70137970 is about 412.3991207247.

The spelling of 70137970 in words is "seventy million, one hundred thirty-seven thousand, nine hundred seventy".