133101999 has 24 divisors (see below), whose sum is σ = 196035840. Its totient is φ = 87004368.

The previous prime is 133101977. The next prime is 133102001. The reversal of 133101999 is 999101331.

It is not a de Polignac number, because 133101999 - 2⁸ = 133101743 is a prime.

It is a super-2 number, since 2×133101999² = 35432284275592002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133101919) 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, 184762 + ... + 185480.

It is an arithmetic number, because the mean of its divisors is an integer number (8168160).

Almost surely, 2^133101999 is an apocalyptic number.

133101999 is a deficient number, since it is larger than the sum of its proper divisors (62933841).

133101999 is a wasteful number, since it uses less digits than its factorization.

133101999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 36.

The square root of 133101999 is about 11536.9839646244. The cubic root of 133101999 is about 510.5773277552.

The spelling of 133101999 in words is "one hundred thirty-three million, one hundred one thousand, nine hundred ninety-nine".