136645470 has 48 divisors (see below), whose sum is σ = 382610592. Its totient is φ = 33635520.

The previous prime is 136645469. The next prime is 136645519. The reversal of 136645470 is 74546631.

It is a happy number.

136645470 is a `hidden beast` number, since 1 + 3 + 6 + 645 + 4 + 7 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57226 + ... + 59565.

It is an arithmetic number, because the mean of its divisors is an integer number (7971054).

Almost surely, 2^136645470 is an apocalyptic number.

136645470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136645470 is an abundant number, since it is smaller than the sum of its proper divisors (245965122).

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

136645470 is a wasteful number, since it uses less digits than its factorization.

136645470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116817 (or 116814 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 136645470 is about 11689.5453290536. The cubic root of 136645470 is about 515.0686055585.

The spelling of 136645470 in words is "one hundred thirty-six million, six hundred forty-five thousand, four hundred seventy".