136018451 has 4 divisors (see below), whose sum is σ = 136091904. Its totient is φ = 135945000.

The previous prime is 136018429. The next prime is 136018457. The reversal of 136018451 is 154810631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136018451 - 2¹⁸ = 135756307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136018457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33875 + ... + 37676.

It is an arithmetic number, because the mean of its divisors is an integer number (34022976).

Almost surely, 2^136018451 is an apocalyptic number.

136018451 is a deficient number, since it is larger than the sum of its proper divisors (73453).

136018451 is an equidigital number, since it uses as much as digits as its factorization.

136018451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73452.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 136018451 is about 11662.6948429598. The cubic root of 136018451 is about 514.2795733137.

The spelling of 136018451 in words is "one hundred thirty-six million, eighteen thousand, four hundred fifty-one".