133007791 has 16 divisors (see below), whose sum is σ = 155741184. Its totient is φ = 111223584.

The previous prime is 133007767. The next prime is 133007821. The reversal of 133007791 is 197700331.

It is a cyclic number.

It is not a de Polignac number, because 133007791 - 2⁵ = 133007759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133007761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171681 + ... + 172453.

It is an arithmetic number, because the mean of its divisors is an integer number (9733824).

Almost surely, 2^133007791 is an apocalyptic number.

133007791 is a deficient number, since it is larger than the sum of its proper divisors (22733393).

133007791 is an equidigital number, since it uses as much as digits as its factorization.

133007791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350.

The product of its (nonzero) digits is 3969, while the sum is 31.

The square root of 133007791 is about 11532.9003724128. The cubic root of 133007791 is about 510.4568391524.

The spelling of 133007791 in words is "one hundred thirty-three million, seven thousand, seven hundred ninety-one".