137670872 has 8 divisors (see below), whose sum is σ = 258132900. Its totient is φ = 68835432.

The previous prime is 137670853. The next prime is 137670877. The reversal of 137670872 is 278076731.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137670877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8604422 + ... + 8604437.

Almost surely, 2^137670872 is an apocalyptic number.

It is an amenable number.

137670872 is a deficient number, since it is larger than the sum of its proper divisors (120462028).

137670872 is a wasteful number, since it uses less digits than its factorization.

137670872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17208865 (or 17208861 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 137670872 is about 11733.3231439350. The cubic root of 137670872 is about 516.3537725794.

The spelling of 137670872 in words is "one hundred thirty-seven million, six hundred seventy thousand, eight hundred seventy-two".