136867790 has 32 divisors (see below), whose sum is σ = 255467520. Its totient is φ = 52740000.

The previous prime is 136867781. The next prime is 136867813. The reversal of 136867790 is 97768631.

136867790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76931 + ... + 78689.

It is an arithmetic number, because the mean of its divisors is an integer number (7983360).

Almost surely, 2^136867790 is an apocalyptic number.

136867790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136867790 is a deficient number, since it is larger than the sum of its proper divisors (118599730).

136867790 is a wasteful number, since it uses less digits than its factorization.

136867790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 136867790 is about 11699.0508161987. The cubic root of 136867790 is about 515.3477903386.

The spelling of 136867790 in words is "one hundred thirty-six million, eight hundred sixty-seven thousand, seven hundred ninety".