136865057 has 8 divisors (see below), whose sum is σ = 156493632. Its totient is φ = 117255600.

The previous prime is 136865039. The next prime is 136865083. The reversal of 136865057 is 750568631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136865057 - 2¹² = 136860961 is a prime.

It is a super-2 number, since 2×136865057² = 37464087655226498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136865857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17507 + ... + 24087.

It is an arithmetic number, because the mean of its divisors is an integer number (19561704).

Almost surely, 2^136865057 is an apocalyptic number.

It is an amenable number.

136865057 is a deficient number, since it is larger than the sum of its proper divisors (19628575).

136865057 is an equidigital number, since it uses as much as digits as its factorization.

136865057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9559.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 136865057 is about 11698.9340112679. The cubic root of 136865057 is about 515.3443601308.

The spelling of 136865057 in words is "one hundred thirty-six million, eight hundred sixty-five thousand, fifty-seven".