2133609399 has 12 divisors (see below), whose sum is σ = 3082362400. Its totient is φ = 1422183744.

The previous prime is 2133609347. The next prime is 2133609409. The reversal of 2133609399 is 9939063312.

2133609399 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 609 + 39 + 9 = 666.

It is not a de Polignac number, because 2133609399 - 2¹² = 2133605303 is a prime.

It is a super-2 number, since 2×2133609399² = 9104578135002282402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133609319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59442 + ... + 88320.

Almost surely, 2^2133609399 is an apocalyptic number.

2133609399 is a deficient number, since it is larger than the sum of its proper divisors (948753001).

2133609399 is a wasteful number, since it uses less digits than its factorization.

2133609399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37094 (or 37091 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 45.

The square root of 2133609399 is about 46191.0099369996. The cubic root of 2133609399 is about 1287.3747059271.

The spelling of 2133609399 in words is "two billion, one hundred thirty-three million, six hundred nine thousand, three hundred ninety-nine".