133253125 has 12 divisors (see below), whose sum is σ = 166559652. Its totient is φ = 106600000.

The previous prime is 133253111. The next prime is 133253129. The reversal of 133253125 is 521352331.

It can be written as a sum of positive squares in 6 ways, for example, as 102272769 + 30980356 = 10113^2 + 5566^2 .

It is a de Polignac number, because none of the positive numbers 2^k-133253125 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133253125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133253129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18196 + ... + 24445.

It is an arithmetic number, because the mean of its divisors is an integer number (13879971).

Almost surely, 2^133253125 is an apocalyptic number.

It is an amenable number.

133253125 is a deficient number, since it is larger than the sum of its proper divisors (33306527).

133253125 is an frugal number, since it uses more digits than its factorization.

133253125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42666 (or 42646 counting only the distinct ones).

The product of its digits is 2700, while the sum is 25.

The square root of 133253125 is about 11543.5317385972. The cubic root of 133253125 is about 510.7704937100.

The spelling of 133253125 in words is "one hundred thirty-three million, two hundred fifty-three thousand, one hundred twenty-five".