133155340 has 24 divisors (see below), whose sum is σ = 281509200. Its totient is φ = 52903488.

The previous prime is 133155329. The next prime is 133155377. The reversal of 133155340 is 43551331.

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, 19362 + ... + 25321.

It is an arithmetic number, because the mean of its divisors is an integer number (11729550).

Almost surely, 2^133155340 is an apocalyptic number.

133155340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133155340 is an abundant number, since it is smaller than the sum of its proper divisors (148353860).

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

133155340 is a wasteful number, since it uses less digits than its factorization.

133155340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44841 (or 44839 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 133155340 is about 11539.2954724281. The cubic root of 133155340 is about 510.6455237455.

The spelling of 133155340 in words is "one hundred thirty-three million, one hundred fifty-five thousand, three hundred forty".