133801600 has 48 divisors (see below), whose sum is σ = 330539670. Its totient is φ = 53519360.

The previous prime is 133801537. The next prime is 133801601. The reversal of 133801600 is 6108331.

It can be written as a sum of positive squares in 3 ways, for example, as 70694464 + 63107136 = 8408^2 + 7944^2 .

It is not an unprimeable number, because it can be changed into a prime (133801601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17707 + ... + 24106.

Almost surely, 2^133801600 is an apocalyptic number.

133801600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133801600 is an abundant number, since it is smaller than the sum of its proper divisors (196738070).

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

133801600 is an equidigital number, since it uses as much as digits as its factorization.

133801600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41837 (or 41820 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 133801600 is about 11567.2641536363. The cubic root of 133801600 is about 511.4703180999.

Adding to 133801600 its reverse (6108331), we get a palindrome (139909931).

The spelling of 133801600 in words is "one hundred thirty-three million, eight hundred one thousand, six hundred".