133562745 has 24 divisors (see below), whose sum is σ = 234117000. Its totient is φ = 70430976.

The previous prime is 133562731. The next prime is 133562749. The reversal of 133562745 is 547265331.

It can be written as a sum of positive squares in 4 ways, for example, as 26998416 + 106564329 = 5196^2 + 10323^2 .

It is not a de Polignac number, because 133562745 - 2⁷ = 133562617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133562749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12670 + ... + 20679.

It is an arithmetic number, because the mean of its divisors is an integer number (9754875).

Almost surely, 2^133562745 is an apocalyptic number.

133562745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133562745 is a deficient number, since it is larger than the sum of its proper divisors (100554255).

133562745 is a wasteful number, since it uses less digits than its factorization.

133562745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33449 (or 33446 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 133562745 is about 11556.9349310273. The cubic root of 133562745 is about 511.1657875852.

The spelling of 133562745 in words is "one hundred thirty-three million, five hundred sixty-two thousand, seven hundred forty-five".