133423365492 has 72 divisors (see below), whose sum is σ = 348279556352. Its totient is φ = 43023052800.

The previous prime is 133423365389. The next prime is 133423365511. The reversal of 133423365492 is 294563324331.

It is a happy number.

133423365492 is a `hidden beast` number, since 1 + 33 + 42 + 3 + 36 + 549 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3025908 + ... + 3069684.

Almost surely, 2^133423365492 is an apocalyptic number.

133423365492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133423365492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174139778176).

133423365492 is an abundant number, since it is smaller than the sum of its proper divisors (214856190860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133423365492 is a wasteful number, since it uses less digits than its factorization.

133423365492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46549 (or 46544 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 45.

The spelling of 133423365492 in words is "one hundred thirty-three billion, four hundred twenty-three million, three hundred sixty-five thousand, four hundred ninety-two".