137280087 has 12 divisors (see below), whose sum is σ = 226621200. Its totient is φ = 78445728.

The previous prime is 137280071. The next prime is 137280089. The reversal of 137280087 is 780082731.

It is not a de Polignac number, because 137280087 - 2⁴ = 137280071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137280089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1089462 + ... + 1089587.

It is an arithmetic number, because the mean of its divisors is an integer number (18885100).

Almost surely, 2^137280087 is an apocalyptic number.

137280087 is a deficient number, since it is larger than the sum of its proper divisors (89341113).

137280087 is a wasteful number, since it uses less digits than its factorization.

137280087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179062 (or 2179059 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 137280087 is about 11716.6585253646. The cubic root of 137280087 is about 515.8647450618.

The spelling of 137280087 in words is "one hundred thirty-seven million, two hundred eighty thousand, eighty-seven".