133920570 has 32 divisors (see below), whose sum is σ = 367325568. Its totient is φ = 30610368.

The previous prime is 133920557. The next prime is 133920587. The reversal of 133920570 is 75029331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318649 + ... + 319068.

It is an arithmetic number, because the mean of its divisors is an integer number (11478924).

Almost surely, 2^133920570 is an apocalyptic number.

133920570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133920570 is an abundant number, since it is smaller than the sum of its proper divisors (233404998).

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

133920570 is a wasteful number, since it uses less digits than its factorization.

133920570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637734.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 133920570 is about 11572.4055407681. The cubic root of 133920570 is about 511.6218648622.

The spelling of 133920570 in words is "one hundred thirty-three million, nine hundred twenty thousand, five hundred seventy".