136370385 has 36 divisors (see below), whose sum is σ = 245513268. Its totient is φ = 72713376.

The previous prime is 136370369. The next prime is 136370389. The reversal of 136370385 is 583073631.

136370385 is a `hidden beast` number, since 13 + 637 + 0 + 3 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55532304 + 80838081 = 7452^2 + 8991^2 .

It is not a de Polignac number, because 136370385 - 2⁴ = 136370369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136370389) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30727 + ... + 34883.

It is an arithmetic number, because the mean of its divisors is an integer number (6819813).

Almost surely, 2^136370385 is an apocalyptic number.

136370385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136370385 is a deficient number, since it is larger than the sum of its proper divisors (109142883).

136370385 is an frugal number, since it uses more digits than its factorization.

136370385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186 (or 4165 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 136370385 is about 11677.7731181934. The cubic root of 136370385 is about 514.7227401294.

The spelling of 136370385 in words is "one hundred thirty-six million, three hundred seventy thousand, three hundred eighty-five".