137213712 has 30 divisors (see below), whose sum is σ = 384008222. Its totient is φ = 45737856.

The previous prime is 137213693. The next prime is 137213737. The reversal of 137213712 is 217312731.

It can be written as a sum of positive squares in only one way, i.e., 98724096 + 38489616 = 9936^2 + 6204^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 476293 + ... + 476580.

Almost surely, 2^137213712 is an apocalyptic number.

137213712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137213712 is an abundant number, since it is smaller than the sum of its proper divisors (246794510).

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

137213712 is a wasteful number, since it uses less digits than its factorization.

137213712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952887 (or 952878 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 137213712 is about 11713.8256773780. The cubic root of 137213712 is about 515.7815913597.

The spelling of 137213712 in words is "one hundred thirty-seven million, two hundred thirteen thousand, seven hundred twelve".