133252400 has 30 divisors (see below), whose sum is σ = 320139852. Its totient is φ = 53300800.

The previous prime is 133252397. The next prime is 133252451. The reversal of 133252400 is 4252331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166166 + ... + 166965.

Almost surely, 2^133252400 is an apocalyptic number.

133252400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133252400 is an abundant number, since it is smaller than the sum of its proper divisors (186887452).

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

133252400 is a wasteful number, since it uses less digits than its factorization.

133252400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333149 (or 333138 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 133252400 is about 11543.5003356867. The cubic root of 133252400 is about 510.7695673796.

The spelling of 133252400 in words is "one hundred thirty-three million, two hundred fifty-two thousand, four hundred".