137979559 has 2 divisors, whose sum is σ = 137979560. Its totient is φ = 137979558.

The previous prime is 137979551. The next prime is 137979619. The reversal of 137979559 is 955979731.

137979559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137979559 - 2³ = 137979551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137979551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68989779 + 68989780.

It is an arithmetic number, because the mean of its divisors is an integer number (68989780).

Almost surely, 2^137979559 is an apocalyptic number.

137979559 is a deficient number, since it is larger than the sum of its proper divisors (1).

137979559 is an equidigital number, since it uses as much as digits as its factorization.

137979559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2679075, while the sum is 55.

The square root of 137979559 is about 11746.4700655133. The cubic root of 137979559 is about 516.7394090203.

The spelling of 137979559 in words is "one hundred thirty-seven million, nine hundred seventy-nine thousand, five hundred fifty-nine".