136918474 has 16 divisors (see below), whose sum is σ = 256055616. Its totient is φ = 53344800.

The previous prime is 136918447. The next prime is 136918477. The reversal of 136918474 is 474819631.

It is a self number, because there is not a number n which added to its sum of digits gives 136918474.

It is not an unprimeable number, because it can be changed into a prime (136918477) 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, 444387 + ... + 444694.

It is an arithmetic number, because the mean of its divisors is an integer number (16003476).

Almost surely, 2^136918474 is an apocalyptic number.

136918474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

136918474 is a deficient number, since it is larger than the sum of its proper divisors (119137142).

136918474 is a wasteful number, since it uses less digits than its factorization.

136918474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889101.

The product of its digits is 145152, while the sum is 43.

The square root of 136918474 is about 11701.2167743359. The cubic root of 136918474 is about 515.4113959146.

The spelling of 136918474 in words is "one hundred thirty-six million, nine hundred eighteen thousand, four hundred seventy-four".