133457272 has 24 divisors (see below), whose sum is σ = 270964440. Its totient is φ = 61595040.

The previous prime is 133457267. The next prime is 133457281. The reversal of 133457272 is 272754331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48004 + ... + 50707.

It is an arithmetic number, because the mean of its divisors is an integer number (11290185).

Almost surely, 2^133457272 is an apocalyptic number.

It is an amenable number.

133457272 is an abundant number, since it is smaller than the sum of its proper divisors (137507168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133457272 is a wasteful number, since it uses less digits than its factorization.

133457272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98743 (or 98726 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 133457272 is about 11552.3708389231. The cubic root of 133457272 is about 511.0311981902.

The spelling of 133457272 in words is "one hundred thirty-three million, four hundred fifty-seven thousand, two hundred seventy-two".