135188625 has 64 divisors (see below), whose sum is σ = 264386304. Its totient is φ = 60480000.

The previous prime is 135188611. The next prime is 135188663. The reversal of 135188625 is 526881531.

It is not a de Polignac number, because 135188625 - 2⁵ = 135188593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52365 + ... + 54885.

It is an arithmetic number, because the mean of its divisors is an integer number (4131036).

Almost surely, 2^135188625 is an apocalyptic number.

135188625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135188625 is a deficient number, since it is larger than the sum of its proper divisors (129197679).

135188625 is a wasteful number, since it uses less digits than its factorization.

135188625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563 (or 2553 counting only the distinct ones).

The product of its digits is 57600, while the sum is 39.

The square root of 135188625 is about 11627.0643328400. The cubic root of 135188625 is about 513.2315944530.

The spelling of 135188625 in words is "one hundred thirty-five million, one hundred eighty-eight thousand, six hundred twenty-five".