137727089 has 2 divisors, whose sum is σ = 137727090. Its totient is φ = 137727088.

The previous prime is 137727053. The next prime is 137727097. The reversal of 137727089 is 980727731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121727089 + 16000000 = 11033^2 + 4000^2 .

It is a cyclic number.

It is not a de Polignac number, because 137727089 - 2¹⁶ = 137661553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137727049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68863544 + 68863545.

It is an arithmetic number, because the mean of its divisors is an integer number (68863545).

Almost surely, 2^137727089 is an apocalyptic number.

It is an amenable number.

137727089 is a deficient number, since it is larger than the sum of its proper divisors (1).

137727089 is an equidigital number, since it uses as much as digits as its factorization.

137727089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 137727089 is about 11735.7185123025. The cubic root of 137727089 is about 516.4240462435.

The spelling of 137727089 in words is "one hundred thirty-seven million, seven hundred twenty-seven thousand, eighty-nine".