136520678 has 16 divisors (see below), whose sum is σ = 234276864. Its totient is φ = 58448520.

The previous prime is 136520677. The next prime is 136520689. The reversal of 136520678 is 876025631.

It is a super-3 number, since 3×136520678³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136520677) 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, 10733 + ... + 19703.

It is an arithmetic number, because the mean of its divisors is an integer number (14642304).

Almost surely, 2^136520678 is an apocalyptic number.

136520678 is a deficient number, since it is larger than the sum of its proper divisors (97756186).

136520678 is a wasteful number, since it uses less digits than its factorization.

136520678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10067.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 136520678 is about 11684.2063487427. The cubic root of 136520678 is about 514.9117616757.

The spelling of 136520678 in words is "one hundred thirty-six million, five hundred twenty thousand, six hundred seventy-eight".