136429977 has 16 divisors (see below), whose sum is σ = 190860800. Its totient is φ = 86572800.

The previous prime is 136429973. The next prime is 136429987. The reversal of 136429977 is 779924631.

It is a happy number.

It is not a de Polignac number, because 136429977 - 2² = 136429973 is a prime.

It is a super-2 number, since 2×136429977² = 37226277248441058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136429973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6352 + ... + 17697.

It is an arithmetic number, because the mean of its divisors is an integer number (11928800).

Almost surely, 2^136429977 is an apocalyptic number.

It is an amenable number.

136429977 is a deficient number, since it is larger than the sum of its proper divisors (54430823).

136429977 is a wasteful number, since it uses less digits than its factorization.

136429977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24144.

The product of its digits is 571536, while the sum is 48.

The square root of 136429977 is about 11680.3243533731. The cubic root of 136429977 is about 514.7977048188.

The spelling of 136429977 in words is "one hundred thirty-six million, four hundred twenty-nine thousand, nine hundred seventy-seven".