133245500 has 24 divisors (see below), whose sum is σ = 291009264. Its totient is φ = 53298000.

The previous prime is 133245493. The next prime is 133245521. The reversal of 133245500 is 5542331.

It is a super-3 number, since 3×133245500³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132746 + ... + 133745.

It is an arithmetic number, because the mean of its divisors is an integer number (12125386).

Almost surely, 2^133245500 is an apocalyptic number.

133245500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133245500 is an abundant number, since it is smaller than the sum of its proper divisors (157763764).

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

133245500 is a wasteful number, since it uses less digits than its factorization.

133245500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266510 (or 266498 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 133245500 is about 11543.2014623327. The cubic root of 133245500 is about 510.7607511010.

Adding to 133245500 its reverse (5542331), we get a palindrome (138787831).

The spelling of 133245500 in words is "one hundred thirty-three million, two hundred forty-five thousand, five hundred".