136331451 has 8 divisors (see below), whose sum is σ = 201972560. Its totient is φ = 90887616.

The previous prime is 136331417. The next prime is 136331453. The reversal of 136331451 is 154133631.

136331451 is a `hidden beast` number, since 13 + 633 + 14 + 5 + 1 = 666.

It is not a de Polignac number, because 136331451 - 2⁶ = 136331387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5049313 = 136331451 / (1 + 3 + 6 + 3 + 3 + 1 + 4 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136331453) 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, 2524630 + ... + 2524683.

It is an arithmetic number, because the mean of its divisors is an integer number (25246570).

Almost surely, 2^136331451 is an apocalyptic number.

136331451 is a deficient number, since it is larger than the sum of its proper divisors (65641109).

136331451 is an equidigital number, since it uses as much as digits as its factorization.

136331451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049322 (or 5049316 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 136331451 is about 11676.1059861582. The cubic root of 136331451 is about 514.6737506986.

The spelling of 136331451 in words is "one hundred thirty-six million, three hundred thirty-one thousand, four hundred fifty-one".