137689959 has 16 divisors (see below), whose sum is σ = 200839680. Its totient is φ = 83213760.

The previous prime is 137689939. The next prime is 137689961. The reversal of 137689959 is 959986731.

It is not a de Polignac number, because 137689959 - 2⁷ = 137689831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137689899 and 137689908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137689939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6427 + ... + 17795.

It is an arithmetic number, because the mean of its divisors is an integer number (12552480).

Almost surely, 2^137689959 is an apocalyptic number.

137689959 is a deficient number, since it is larger than the sum of its proper divisors (63149721).

137689959 is a wasteful number, since it uses less digits than its factorization.

137689959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11750.

The product of its digits is 3674160, while the sum is 57.

The square root of 137689959 is about 11734.1364829288. The cubic root of 137689959 is about 516.3776342937.

It can be divided in two parts, 137 and 689959, that added together give a palindrome (690096).

The spelling of 137689959 in words is "one hundred thirty-seven million, six hundred eighty-nine thousand, nine hundred fifty-nine".