133153425 has 36 divisors (see below), whose sum is σ = 251052880. Its totient is φ = 67275360.

The previous prime is 133153409. The next prime is 133153453. The reversal of 133153425 is 524351331.

133153425 is a `hidden beast` number, since 1 + 3 + 315 + 342 + 5 = 666.

It is not a de Polignac number, because 133153425 - 2⁴ = 133153409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11299 + ... + 19848.

Almost surely, 2^133153425 is an apocalyptic number.

133153425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133153425 is a deficient number, since it is larger than the sum of its proper divisors (117899455).

133153425 is a wasteful number, since it uses less digits than its factorization.

133153425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31182 (or 31174 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 133153425 is about 11539.2124947936. The cubic root of 133153425 is about 510.6430757504.

It can be divided in two parts, 1331 and 53425, that added together give a square (54756 = 234²).

The spelling of 133153425 in words is "one hundred thirty-three million, one hundred fifty-three thousand, four hundred twenty-five".