136154399 has 12 divisors (see below), whose sum is σ = 147218400. Its totient is φ = 125828640.

The previous prime is 136154393. The next prime is 136154419. The reversal of 136154399 is 993451631.

136154399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136154399 - 2¹² = 136150303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136154393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10202 + ... + 19400.

It is an arithmetic number, because the mean of its divisors is an integer number (12268200).

Almost surely, 2^136154399 is an apocalyptic number.

136154399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

136154399 is a deficient number, since it is larger than the sum of its proper divisors (11064001).

136154399 is an equidigital number, since it uses as much as digits as its factorization.

136154399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9278 (or 9259 counting only the distinct ones).

The product of its digits is 87480, while the sum is 41.

The square root of 136154399 is about 11668.5217144247. The cubic root of 136154399 is about 514.4508539961.

The spelling of 136154399 in words is "one hundred thirty-six million, one hundred fifty-four thousand, three hundred ninety-nine".