133347872 has 24 divisors (see below), whose sum is σ = 300033216. Its totient is φ = 57148992.

The previous prime is 133347853. The next prime is 133347923. The reversal of 133347872 is 278743331.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297428 + ... + 297875.

It is an arithmetic number, because the mean of its divisors is an integer number (12501384).

Almost surely, 2^133347872 is an apocalyptic number.

It is an amenable number.

133347872 is an abundant number, since it is smaller than the sum of its proper divisors (166685344).

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

133347872 is an equidigital number, since it uses as much as digits as its factorization.

133347872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595320 (or 595312 counting only the distinct ones).

The product of its digits is 84672, while the sum is 38.

The square root of 133347872 is about 11547.6349093656. The cubic root of 133347872 is about 510.8915227832.

The spelling of 133347872 in words is "one hundred thirty-three million, three hundred forty-seven thousand, eight hundred seventy-two".