137988377 has 8 divisors (see below), whose sum is σ = 139560192. Its totient is φ = 136422000.

The previous prime is 137988349. The next prime is 137988397. The reversal of 137988377 is 773889731.

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 137988377 - 2⁶ = 137988313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137988307) 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 in 7 ways as a sum of consecutive naturals, for example, 69752 + ... + 71702.

It is an arithmetic number, because the mean of its divisors is an integer number (17445024).

Almost surely, 2^137988377 is an apocalyptic number.

It is an amenable number.

137988377 is a deficient number, since it is larger than the sum of its proper divisors (1571815).

137988377 is a wasteful number, since it uses less digits than its factorization.

137988377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719.

The product of its digits is 1778112, while the sum is 53.

The square root of 137988377 is about 11746.8454063208. The cubic root of 137988377 is about 516.7504167162.

The spelling of 137988377 in words is "one hundred thirty-seven million, nine hundred eighty-eight thousand, three hundred seventy-seven".