136739967 has 32 divisors (see below), whose sum is σ = 229189632. Its totient is φ = 70585344.

The previous prime is 136739929. The next prime is 136739969. The reversal of 136739967 is 769937631.

It is not a de Polignac number, because 136739967 - 2⁷ = 136739839 is a prime.

It is a super-2 number, since 2×136739967² = 37395637150322178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136739969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7503 + ... + 18159.

It is an arithmetic number, because the mean of its divisors is an integer number (7162176).

Almost surely, 2^136739967 is an apocalyptic number.

136739967 is a deficient number, since it is larger than the sum of its proper divisors (92449665).

136739967 is a wasteful number, since it uses less digits than its factorization.

136739967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10727.

The product of its digits is 1285956, while the sum is 51.

The square root of 136739967 is about 11693.5865755550. The cubic root of 136739967 is about 515.1873098779.

The spelling of 136739967 in words is "one hundred thirty-six million, seven hundred thirty-nine thousand, nine hundred sixty-seven".