133166552 has 32 divisors (see below), whose sum is σ = 257275200. Its totient is φ = 64571904.

The previous prime is 133166549. The next prime is 133166563. The reversal of 133166552 is 255661331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127649 + ... + 128687.

It is an arithmetic number, because the mean of its divisors is an integer number (8039850).

Almost surely, 2^133166552 is an apocalyptic number.

It is an amenable number.

133166552 is a deficient number, since it is larger than the sum of its proper divisors (124108648).

133166552 is a wasteful number, since it uses less digits than its factorization.

133166552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515 (or 1511 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 133166552 is about 11539.7812804230. The cubic root of 133166552 is about 510.6598558705.

The spelling of 133166552 in words is "one hundred thirty-three million, one hundred sixty-six thousand, five hundred fifty-two".