133309930 has 32 divisors (see below), whose sum is σ = 258943104. Its totient is φ = 49121856.

The previous prime is 133309877. The next prime is 133309961. The reversal of 133309930 is 39903331.

It is a junction number, because it is equal to n+sod(n) for n = 133309892 and 133309901.

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, 101659 + ... + 102961.

It is an arithmetic number, because the mean of its divisors is an integer number (8091972).

Almost surely, 2^133309930 is an apocalyptic number.

133309930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133309930 is a deficient number, since it is larger than the sum of its proper divisors (125633174).

133309930 is a wasteful number, since it uses less digits than its factorization.

133309930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110.

The product of its (nonzero) digits is 6561, while the sum is 31.

The square root of 133309930 is about 11545.9919452596. The cubic root of 133309930 is about 510.8430628549.

The spelling of 133309930 in words is "one hundred thirty-three million, three hundred nine thousand, nine hundred thirty".