133166745 has 48 divisors (see below), whose sum is σ = 239016960. Its totient is φ = 68545152.

The previous prime is 133166713. The next prime is 133166767. The reversal of 133166745 is 547661331.

It is not a de Polignac number, because 133166745 - 2⁵ = 133166713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166687 + ... + 167483.

It is an arithmetic number, because the mean of its divisors is an integer number (4979520).

Almost surely, 2^133166745 is an apocalyptic number.

133166745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133166745 is a deficient number, since it is larger than the sum of its proper divisors (105850215).

133166745 is a wasteful number, since it uses less digits than its factorization.

133166745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 931 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 133166745 is about 11539.7896427968. The cubic root of 133166745 is about 510.6601025723.

The spelling of 133166745 in words is "one hundred thirty-three million, one hundred sixty-six thousand, seven hundred forty-five".