133309929 has 8 divisors (see below), whose sum is σ = 177837472. Its totient is φ = 88827840.

The previous prime is 133309877. The next prime is 133309961. The reversal of 133309929 is 929903331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-133309929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133305929) 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, 3799 + ... + 16764.

It is an arithmetic number, because the mean of its divisors is an integer number (22229684).

Almost surely, 2^133309929 is an apocalyptic number.

It is an amenable number.

133309929 is a deficient number, since it is larger than the sum of its proper divisors (44527543).

133309929 is a wasteful number, since it uses less digits than its factorization.

133309929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22727.

The product of its (nonzero) digits is 39366, while the sum is 39.

The square root of 133309929 is about 11545.9919019545. The cubic root of 133309929 is about 510.8430615776.

The spelling of 133309929 in words is "one hundred thirty-three million, three hundred nine thousand, nine hundred twenty-nine".