133530570 has 48 divisors (see below), whose sum is σ = 353077920. Its totient is φ = 35003232.

The previous prime is 133530557. The next prime is 133530577. The reversal of 133530570 is 75035331.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133530577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7264 + ... + 17883.

It is an arithmetic number, because the mean of its divisors is an integer number (7355790).

Almost surely, 2^133530570 is an apocalyptic number.

133530570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133530570 is an abundant number, since it is smaller than the sum of its proper divisors (219547350).

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

133530570 is a wasteful number, since it uses less digits than its factorization.

133530570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25219 (or 25216 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 27.

The square root of 133530570 is about 11555.5428258477. The cubic root of 133530570 is about 511.1247380145.

The spelling of 133530570 in words is "one hundred thirty-three million, five hundred thirty thousand, five hundred seventy".