137731867 has 8 divisors (see below), whose sum is σ = 169516256. Its totient is φ = 108974592.

The previous prime is 137731859. The next prime is 137731873. The reversal of 137731867 is 768137731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137731867 - 2³ = 137731859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137731877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756678 + ... + 756859.

It is an arithmetic number, because the mean of its divisors is an integer number (21189532).

Almost surely, 2^137731867 is an apocalyptic number.

137731867 is a deficient number, since it is larger than the sum of its proper divisors (31784389).

137731867 is a wasteful number, since it uses less digits than its factorization.

137731867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513557.

The product of its digits is 148176, while the sum is 43.

The square root of 137731867 is about 11735.9220771101. The cubic root of 137731867 is about 516.4300180669.

The spelling of 137731867 in words is "one hundred thirty-seven million, seven hundred thirty-one thousand, eight hundred sixty-seven".