133242372 has 36 divisors (see below), whose sum is σ = 337362480. Its totient is φ = 44340912.

The previous prime is 133242367. The next prime is 133242407. The reversal of 133242372 is 273242331.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21879 + ... + 27297.

It is an arithmetic number, because the mean of its divisors is an integer number (9371180).

Almost surely, 2^133242372 is an apocalyptic number.

133242372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133242372 is an abundant number, since it is smaller than the sum of its proper divisors (204120108).

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

133242372 is a wasteful number, since it uses less digits than its factorization.

133242372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112 (or 6107 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 133242372 is about 11543.0659705297. The cubic root of 133242372 is about 510.7567542878.

The spelling of 133242372 in words is "one hundred thirty-three million, two hundred forty-two thousand, three hundred seventy-two".