133535137398 has 24 divisors (see below), whose sum is σ = 289194441768. Its totient is φ = 41087734272.

The previous prime is 133535137363. The next prime is 133535137399. The reversal of 133535137398 is 893731535331.

It is a happy number.

133535137398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133535137398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133535137399) 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, 65844715 + ... + 65846742.

It is an arithmetic number, because the mean of its divisors is an integer number (12049768407).

Almost surely, 2^133535137398 is an apocalyptic number.

133535137398 is an abundant number, since it is smaller than the sum of its proper divisors (155659304370).

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

133535137398 is a wasteful number, since it uses less digits than its factorization.

133535137398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131691488 (or 131691475 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 51.

The spelling of 133535137398 in words is "one hundred thirty-three billion, five hundred thirty-five million, one hundred thirty-seven thousand, three hundred ninety-eight".