133166452 has 24 divisors (see below), whose sum is σ = 241097472. Its totient is φ = 64291200.

The previous prime is 133166437. The next prime is 133166461. The reversal of 133166452 is 254661331.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 72627 + ... + 74437.

It is an arithmetic number, because the mean of its divisors is an integer number (10045728).

Almost surely, 2^133166452 is an apocalyptic number.

It is an amenable number.

133166452 is a deficient number, since it is larger than the sum of its proper divisors (107931020).

133166452 is a wasteful number, since it uses less digits than its factorization.

133166452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2437 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 133166452 is about 11539.7769475844. The cubic root of 133166452 is about 510.6597280456.

It can be divided in two parts, 1331664 and 52, that added together give a square (1331716 = 1154²).

The spelling of 133166452 in words is "one hundred thirty-three million, one hundred sixty-six thousand, four hundred fifty-two".