136515856 has 45 divisors (see below), whose sum is σ = 278693751. Its totient is φ = 64776096.

The previous prime is 136515809. The next prime is 136515859. The reversal of 136515856 is 658515631.

The square root of 136515856 is 11684.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136515859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1074865 + ... + 1074991.

Almost surely, 2^136515856 is an apocalyptic number.

136515856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

136515856 is the 11684-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136515856

136515856 is an abundant number, since it is smaller than the sum of its proper divisors (142177895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136515856 is an equidigital number, since it uses as much as digits as its factorization.

136515856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 152 counting only the distinct ones).

The product of its digits is 108000, while the sum is 40.

The cubic root of 136515856 is about 514.9056992638.

The spelling of 136515856 in words is "one hundred thirty-six million, five hundred fifteen thousand, eight hundred fifty-six".