136369537 has 2 divisors, whose sum is σ = 136369538. Its totient is φ = 136369536.

The previous prime is 136369523. The next prime is 136369543. The reversal of 136369537 is 735963631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135117376 + 1252161 = 11624^2 + 1119^2 .

It is a cyclic number.

It is not a de Polignac number, because 136369537 - 2²³ = 127980929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136369493 and 136369502.

It is not a weakly prime, because it can be changed into another prime (136369547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68184768 + 68184769.

It is an arithmetic number, because the mean of its divisors is an integer number (68184769).

Almost surely, 2^136369537 is an apocalyptic number.

It is an amenable number.

136369537 is a deficient number, since it is larger than the sum of its proper divisors (1).

136369537 is an equidigital number, since it uses as much as digits as its factorization.

136369537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 43.

The square root of 136369537 is about 11677.7368098446. The cubic root of 136369537 is about 514.7216732170.

The spelling of 136369537 in words is "one hundred thirty-six million, three hundred sixty-nine thousand, five hundred thirty-seven".