133145300 has 36 divisors (see below), whose sum is σ = 293835360. Its totient is φ = 52353120.

The previous prime is 133145297. The next prime is 133145317. The reversal of 133145300 is 3541331.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5384 + ... + 17183.

Almost surely, 2^133145300 is an apocalyptic number.

133145300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133145300 is an abundant number, since it is smaller than the sum of its proper divisors (160690060).

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

133145300 is a wasteful number, since it uses less digits than its factorization.

133145300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22640 (or 22633 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 133145300 is about 11538.8604290025. The cubic root of 133145300 is about 510.6326890871.

Adding to 133145300 its reverse (3541331), we get a palindrome (136686631).

The spelling of 133145300 in words is "one hundred thirty-three million, one hundred forty-five thousand, three hundred".