136273445 has 64 divisors (see below), whose sum is σ = 220962816. Its totient is φ = 78074880.

The previous prime is 136273433. The next prime is 136273447. The reversal of 136273445 is 544372631.

136273445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-136273445 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136273447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 307394 + ... + 307836.

It is an arithmetic number, because the mean of its divisors is an integer number (3452544).

Almost surely, 2^136273445 is an apocalyptic number.

It is an amenable number.

136273445 is a deficient number, since it is larger than the sum of its proper divisors (84689371).

136273445 is a wasteful number, since it uses less digits than its factorization.

136273445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530.

The product of its digits is 60480, while the sum is 35.

The square root of 136273445 is about 11673.6217601908. The cubic root of 136273445 is about 514.6007462660.

The spelling of 136273445 in words is "one hundred thirty-six million, two hundred seventy-three thousand, four hundred forty-five".