133146500 has 24 divisors (see below), whose sum is σ = 290793048. Its totient is φ = 53258400.

The previous prime is 133146479. The next prime is 133146523. The reversal of 133146500 is 5641331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23483716 + 109662784 = 4846^2 + 10472^2 .

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 7 ways as a sum of consecutive naturals, for example, 132647 + ... + 133646.

It is an arithmetic number, because the mean of its divisors is an integer number (12116377).

Almost surely, 2^133146500 is an apocalyptic number.

133146500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133146500 is an abundant number, since it is smaller than the sum of its proper divisors (157646548).

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

133146500 is a wasteful number, since it uses less digits than its factorization.

133146500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266312 (or 266300 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 133146500 is about 11538.9124270877. The cubic root of 133146500 is about 510.6342231440.

Adding to 133146500 its reverse (5641331), we get a palindrome (138787831).

The spelling of 133146500 in words is "one hundred thirty-three million, one hundred forty-six thousand, five hundred".