136023057 has 10 divisors (see below), whose sum is σ = 203195058. Its totient is φ = 90681984.

The previous prime is 136023047. The next prime is 136023077. The reversal of 136023057 is 750320631.

It is a happy number.

136023057 is a `hidden beast` number, since 1 + 3 + 602 + 3 + 0 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 127780416 + 8242641 = 11304^2 + 2871^2 .

It is not a de Polignac number, because 136023057 - 2⁶ = 136022993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 136023057.

It is not an unprimeable number, because it can be changed into a prime (136023047) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 839568 + ... + 839729.

Almost surely, 2^136023057 is an apocalyptic number.

It is an amenable number.

136023057 is a deficient number, since it is larger than the sum of its proper divisors (67172001).

136023057 is an equidigital number, since it uses as much as digits as its factorization.

136023057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679309 (or 1679300 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 136023057 is about 11662.8923085142. The cubic root of 136023057 is about 514.2853782736.

Adding to 136023057 its reverse (750320631), we get a palindrome (886343688).

The spelling of 136023057 in words is "one hundred thirty-six million, twenty-three thousand, fifty-seven".