136412643 has 4 divisors (see below), whose sum is σ = 181883528. Its totient is φ = 90941760.

The previous prime is 136412621. The next prime is 136412651. The reversal of 136412643 is 346214631.

136412643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 136412643 - 2⁵ = 136412611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136412643.

It is not an unprimeable number, because it can be changed into a prime (136412693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22735438 + ... + 22735443.

It is an arithmetic number, because the mean of its divisors is an integer number (45470882).

Almost surely, 2^136412643 is an apocalyptic number.

136412643 is a deficient number, since it is larger than the sum of its proper divisors (45470885).

136412643 is an equidigital number, since it uses as much as digits as its factorization.

136412643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45470884.

The product of its digits is 10368, while the sum is 30.

The square root of 136412643 is about 11679.5823127370. The cubic root of 136412643 is about 514.7759014939.

The spelling of 136412643 in words is "one hundred thirty-six million, four hundred twelve thousand, six hundred forty-three".