133032691 has 8 divisors (see below), whose sum is σ = 145347264. Its totient is φ = 120754920.

The previous prime is 133032689. The next prime is 133032707. The reversal of 133032691 is 196230331.

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

It is not a de Polignac number, because 133032691 - 2¹ = 133032689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133032611) 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, 1341 + ... + 16366.

It is an arithmetic number, because the mean of its divisors is an integer number (18168408).

Almost surely, 2^133032691 is an apocalyptic number.

133032691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133032691 is a deficient number, since it is larger than the sum of its proper divisors (12314573).

133032691 is a wasteful number, since it uses less digits than its factorization.

133032691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18401.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 133032691 is about 11533.9798421880. The cubic root of 133032691 is about 510.4886908760.

The spelling of 133032691 in words is "one hundred thirty-three million, thirty-two thousand, six hundred ninety-one".