133750992 has 20 divisors (see below), whose sum is σ = 345523520. Its totient is φ = 44583648.

The previous prime is 133750973. The next prime is 133750993. The reversal of 133750992 is 299057331.

It is a self number, because there is not a number n which added to its sum of digits gives 133750992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133750993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393192 + ... + 1393287.

It is an arithmetic number, because the mean of its divisors is an integer number (17276176).

Almost surely, 2^133750992 is an apocalyptic number.

133750992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133750992 is an abundant number, since it is smaller than the sum of its proper divisors (211772528).

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

133750992 is a wasteful number, since it uses less digits than its factorization.

133750992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786490 (or 2786484 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 133750992 is about 11565.0763940408. The cubic root of 133750992 is about 511.4058252140.

The spelling of 133750992 in words is "one hundred thirty-three million, seven hundred fifty thousand, nine hundred ninety-two".