136501225 has 48 divisors (see below), whose sum is σ = 207268480. Its totient is φ = 87091200.

The previous prime is 136501201. The next prime is 136501241. The reversal of 136501225 is 522105631.

136501225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136501225 - 2²³ = 128112617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 136501225.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202489 + ... + 203161.

Almost surely, 2^136501225 is an apocalyptic number.

It is an amenable number.

136501225 is a deficient number, since it is larger than the sum of its proper divisors (70767255).

136501225 is a wasteful number, since it uses less digits than its factorization.

136501225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 136501225 is about 11683.3738705906. The cubic root of 136501225 is about 514.8873037097.

Adding to 136501225 its reverse (522105631), we get a palindrome (658606856).

The spelling of 136501225 in words is "one hundred thirty-six million, five hundred one thousand, two hundred twenty-five".