133554525 has 24 divisors (see below), whose sum is σ = 237797280. Its totient is φ = 65749440.

The previous prime is 133554493. The next prime is 133554529. The reversal of 133554525 is 525455331.

It is a happy number.

It is not a de Polignac number, because 133554525 - 2⁵ = 133554493 is a prime.

It is a super-2 number, since 2×133554525² = 35673622295951250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133554529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67515 + ... + 69464.

It is an arithmetic number, because the mean of its divisors is an integer number (9908220).

Almost surely, 2^133554525 is an apocalyptic number.

133554525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133554525 is a deficient number, since it is larger than the sum of its proper divisors (104242755).

133554525 is a wasteful number, since it uses less digits than its factorization.

133554525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137005 (or 137000 counting only the distinct ones).

The product of its digits is 45000, while the sum is 33.

The square root of 133554525 is about 11556.5792949298. The cubic root of 133554525 is about 511.1553009560.

The spelling of 133554525 in words is "one hundred thirty-three million, five hundred fifty-four thousand, five hundred twenty-five".