133502134400 has 96 divisors (see below), whose sum is σ = 337461920400. Its totient is φ = 52158919680.

The previous prime is 133502134397. The next prime is 133502134429. The reversal of 133502134400 is 4431205331.

It is a self number, because there is not a number n which added to its sum of digits gives 133502134400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347510 + ... + 622709.

Almost surely, 2^133502134400 is an apocalyptic number.

133502134400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133502134400 is an abundant number, since it is smaller than the sum of its proper divisors (203959786000).

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

133502134400 is an equidigital number, since it uses as much as digits as its factorization.

133502134400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970286 (or 970269 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 133502134400 its reverse (4431205331), we get a palindrome (137933339731).

The spelling of 133502134400 in words is "one hundred thirty-three billion, five hundred two million, one hundred thirty-four thousand, four hundred".