2133494631 has 12 divisors (see below), whose sum is σ = 3088405320. Its totient is φ = 1419241680.

The previous prime is 2133494599. The next prime is 2133494653. The reversal of 2133494631 is 1364943312.

2133494631 is a `hidden beast` number, since 2 + 13 + 3 + 4 + 9 + 4 + 631 = 666.

It is not a de Polignac number, because 2133494631 - 2⁵ = 2133494599 is a prime.

It is a super-2 number, since 2×2133494631² = 9103598681011652322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133494681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252961 + ... + 261258.

It is an arithmetic number, because the mean of its divisors is an integer number (257367110).

Almost surely, 2^2133494631 is an apocalyptic number.

2133494631 is a deficient number, since it is larger than the sum of its proper divisors (954910689).

2133494631 is a wasteful number, since it uses less digits than its factorization.

2133494631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514686 (or 514683 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 2133494631 is about 46189.7676006277. The cubic root of 2133494631 is about 1287.3516226534.

The spelling of 2133494631 in words is "two billion, one hundred thirty-three million, four hundred ninety-four thousand, six hundred thirty-one".