136394472 has 32 divisors (see below), whose sum is σ = 342463680. Its totient is φ = 45267840.

The previous prime is 136394459. The next prime is 136394477. The reversal of 136394472 is 274493631.

It is a self number, because there is not a number n which added to its sum of digits gives 136394472.

It is not an unprimeable number, because it can be changed into a prime (136394477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6604 + ... + 17787.

It is an arithmetic number, because the mean of its divisors is an integer number (10701990).

Almost surely, 2^136394472 is an apocalyptic number.

136394472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136394472 is an abundant number, since it is smaller than the sum of its proper divisors (206069208).

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

136394472 is a wasteful number, since it uses less digits than its factorization.

136394472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24633 (or 24629 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 136394472 is about 11678.8043908612. The cubic root of 136394472 is about 514.7530433773.

The spelling of 136394472 in words is "one hundred thirty-six million, three hundred ninety-four thousand, four hundred seventy-two".