133515100400 has 60 divisors (see below), whose sum is σ = 349930951944. Its totient is φ = 48550944000.

The previous prime is 133515100307. The next prime is 133515100409. The reversal of 133515100400 is 4001515331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133515100409) 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, 15167771 + ... + 15176570.

Almost surely, 2^133515100400 is an apocalyptic number.

133515100400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133515100400 is an abundant number, since it is smaller than the sum of its proper divisors (216415851544).

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

133515100400 is a wasteful number, since it uses less digits than its factorization.

133515100400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30344370 (or 30344359 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 133515100400 its reverse (4001515331), we get a palindrome (137516615731).

The spelling of 133515100400 in words is "one hundred thirty-three billion, five hundred fifteen million, one hundred thousand, four hundred".