136740537 has 24 divisors (see below), whose sum is σ = 210453984. Its totient is φ = 85256064.

The previous prime is 136740521. The next prime is 136740553. The reversal of 136740537 is 735047631.

It is an interprime number because it is at equal distance from previous prime (136740521) and next prime (136740553).

It is not a de Polignac number, because 136740537 - 2⁴ = 136740521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136740517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22198 + ... + 27680.

It is an arithmetic number, because the mean of its divisors is an integer number (8768916).

Almost surely, 2^136740537 is an apocalyptic number.

136740537 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

136740537 is a deficient number, since it is larger than the sum of its proper divisors (73713447).

136740537 is a wasteful number, since it uses less digits than its factorization.

136740537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5669 (or 5666 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 136740537 is about 11693.6109478638. The cubic root of 136740537 is about 515.1880257290.

The spelling of 136740537 in words is "one hundred thirty-six million, seven hundred forty thousand, five hundred thirty-seven".