137999070 has 48 divisors (see below), whose sum is σ = 391418352. Its totient is φ = 33454080.

The previous prime is 137999021. The next prime is 137999093. The reversal of 137999070 is 70999731.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68707 + ... + 70686.

It is an arithmetic number, because the mean of its divisors is an integer number (8154549).

Almost surely, 2^137999070 is an apocalyptic number.

137999070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137999070 is an abundant number, since it is smaller than the sum of its proper divisors (253419282).

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

137999070 is a wasteful number, since it uses less digits than its factorization.

137999070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139417 (or 139414 counting only the distinct ones).

The product of its (nonzero) digits is 107163, while the sum is 45.

The square root of 137999070 is about 11747.3005409754. The cubic root of 137999070 is about 516.7637643850.

The spelling of 137999070 in words is "one hundred thirty-seven million, nine hundred ninety-nine thousand, seventy".