70137980 has 24 divisors (see below), whose sum is σ = 160680240. Its totient is φ = 25504640.

The previous prime is 70137973. The next prime is 70138001. The reversal of 70137980 is 8973107.

It is a self number, because there is not a number n which added to its sum of digits gives 70137980.

It is a congruent number.

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, 159185 + ... + 159624.

It is an arithmetic number, because the mean of its divisors is an integer number (6695010).

Almost surely, 2^70137980 is an apocalyptic number.

It is an amenable number.

70137980 is an abundant number, since it is smaller than the sum of its proper divisors (90542260).

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

70137980 is a wasteful number, since it uses less digits than its factorization.

70137980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318829 (or 318827 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 70137980 is about 8374.8420880635. The cubic root of 70137980 is about 412.3991403241.

It can be divided in two parts, 70137 and 980, that added together give a palindrome (71117).

The spelling of 70137980 in words is "seventy million, one hundred thirty-seven thousand, nine hundred eighty".