133323980 has 24 divisors (see below), whose sum is σ = 280279440. Its totient is φ = 53272640.

The previous prime is 133323977. The next prime is 133323989. The reversal of 133323980 is 89323331.

It is not an unprimeable number, because it can be changed into a prime (133323989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19175 + ... + 25185.

It is an arithmetic number, because the mean of its divisors is an integer number (11678310).

Almost surely, 2^133323980 is an apocalyptic number.

133323980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133323980 is an abundant number, since it is smaller than the sum of its proper divisors (146955460).

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

133323980 is a wasteful number, since it uses less digits than its factorization.

133323980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129 (or 7127 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 133323980 is about 11546.6003654755. The cubic root of 133323980 is about 510.8610087371.

The spelling of 133323980 in words is "one hundred thirty-three million, three hundred twenty-three thousand, nine hundred eighty".