133164425 has 12 divisors (see below), whose sum is σ = 165560460. Its totient is φ = 106249920.

The previous prime is 133164401. The next prime is 133164439. The reversal of 133164425 is 524461331.

It can be written as a sum of positive squares in 6 ways, for example, as 1190281 + 131974144 = 1091^2 + 11488^2 .

It is not a de Polignac number, because 133164425 - 2⁸ = 133164169 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2879 + ... + 16571.

It is an arithmetic number, because the mean of its divisors is an integer number (13796705).

Almost surely, 2^133164425 is an apocalyptic number.

It is an amenable number.

133164425 is a deficient number, since it is larger than the sum of its proper divisors (32396035).

133164425 is a wasteful number, since it uses less digits than its factorization.

133164425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14092 (or 14087 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 133164425 is about 11539.6891205959. The cubic root of 133164425 is about 510.6571370214.

It can be divided in two parts, 1331 and 64425, that added together give a palindrome (65756).

The spelling of 133164425 in words is "one hundred thirty-three million, one hundred sixty-four thousand, four hundred twenty-five".