136159780 has 24 divisors (see below), whose sum is σ = 287380800. Its totient is φ = 54188640.

The previous prime is 136159759. The next prime is 136159789. The reversal of 136159780 is 87951631.

It is not an unprimeable number, because it can be changed into a prime (136159789) 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, 13126 + ... + 21085.

It is an arithmetic number, because the mean of its divisors is an integer number (11974200).

Almost surely, 2^136159780 is an apocalyptic number.

136159780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136159780 is an abundant number, since it is smaller than the sum of its proper divisors (151221020).

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

136159780 is a wasteful number, since it uses less digits than its factorization.

136159780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34419 (or 34417 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 136159780 is about 11668.7522897695. The cubic root of 136159780 is about 514.4576311638.

The spelling of 136159780 in words is "one hundred thirty-six million, one hundred fifty-nine thousand, seven hundred eighty".