133140625 has 14 divisors (see below), whose sum is σ = 166443182. Its totient is φ = 106500000.

The previous prime is 133140587. The next prime is 133140643. The reversal of 133140625 is 526041331.

It can be written as a sum of positive squares in 7 ways, for example, as 132917841 + 222784 = 11529^2 + 472^2 .

It is not a de Polignac number, because 133140625 - 2⁹ = 133140113 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 133140625.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 11365 + ... + 19885.

Almost surely, 2^133140625 is an apocalyptic number.

It is an amenable number.

133140625 is a deficient number, since it is larger than the sum of its proper divisors (33302557).

133140625 is an frugal number, since it uses more digits than its factorization.

133140625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8551 (or 8526 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 133140625 is about 11538.6578508941. The cubic root of 133140625 is about 510.6267125693.

Adding to 133140625 its reverse (526041331), we get a palindrome (659181956).

The spelling of 133140625 in words is "one hundred thirty-three million, one hundred forty thousand, six hundred twenty-five".