133939228293 has 32 divisors (see below), whose sum is σ = 213730070400. Its totient is φ = 82409539968.

The previous prime is 133939228279. The next prime is 133939228301. The reversal of 133939228293 is 392822939331.

It is a happy number.

133939228293 is a `hidden beast` number, since 1 + 3 + 393 + 9 + 228 + 29 + 3 = 666.

It is not a de Polignac number, because 133939228293 - 2²⁰ = 133938179717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133939228223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2151478 + ... + 2212856.

It is an arithmetic number, because the mean of its divisors is an integer number (6679064700).

Almost surely, 2^133939228293 is an apocalyptic number.

133939228293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

133939228293 is a deficient number, since it is larger than the sum of its proper divisors (79790842107).

133939228293 is a wasteful number, since it uses less digits than its factorization.

133939228293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67618 (or 67612 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The spelling of 133939228293 in words is "one hundred thirty-three billion, nine hundred thirty-nine million, two hundred twenty-eight thousand, two hundred ninety-three".