136889325 has 24 divisors (see below), whose sum is σ = 251472000. Its totient is φ = 73007280.

The previous prime is 136889297. The next prime is 136889329. The reversal of 136889325 is 523988631.

It is a happy number.

It is not a de Polignac number, because 136889325 - 2⁷ = 136889197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136889329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100725 + ... + 102074.

It is an arithmetic number, because the mean of its divisors is an integer number (10478000).

Almost surely, 2^136889325 is an apocalyptic number.

136889325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136889325 is a deficient number, since it is larger than the sum of its proper divisors (114582675).

136889325 is a wasteful number, since it uses less digits than its factorization.

136889325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202818 (or 202807 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 136889325 is about 11699.9711538106. The cubic root of 136889325 is about 515.3748174734.

The spelling of 136889325 in words is "one hundred thirty-six million, eight hundred eighty-nine thousand, three hundred twenty-five".