136540877 has 12 divisors (see below), whose sum is σ = 150407040. Its totient is φ = 123859560.

The previous prime is 136540849. The next prime is 136540883. The reversal of 136540877 is 778045631.

It is a de Polignac number, because none of the positive numbers 2^k-136540877 is a prime.

It is a super-2 number, since 2×136540877² = 37286822183858258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136540837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73988 + ... + 75810.

It is an arithmetic number, because the mean of its divisors is an integer number (12533920).

Almost surely, 2^136540877 is an apocalyptic number.

It is an amenable number.

136540877 is a deficient number, since it is larger than the sum of its proper divisors (13866163).

136540877 is a wasteful number, since it uses less digits than its factorization.

136540877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 136540877 is about 11685.0706887036. The cubic root of 136540877 is about 514.9371551177.

The spelling of 136540877 in words is "one hundred thirty-six million, five hundred forty thousand, eight hundred seventy-seven".