136442651 has 4 divisors (see below), whose sum is σ = 141147600. Its totient is φ = 131737704.

The previous prime is 136442627. The next prime is 136442681. The reversal of 136442651 is 156244631.

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 136442651 - 2⁶ = 136442587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136442611) 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, 2352431 + ... + 2352488.

It is an arithmetic number, because the mean of its divisors is an integer number (35286900).

Almost surely, 2^136442651 is an apocalyptic number.

136442651 is a deficient number, since it is larger than the sum of its proper divisors (4704949).

136442651 is an equidigital number, since it uses as much as digits as its factorization.

136442651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704948.

The product of its digits is 17280, while the sum is 32.

The square root of 136442651 is about 11680.8668770772. The cubic root of 136442651 is about 514.8136454604.

The spelling of 136442651 in words is "one hundred thirty-six million, four hundred forty-two thousand, six hundred fifty-one".