133145032 has 16 divisors (see below), whose sum is σ = 258255900. Its totient is φ = 64276800.

The previous prime is 133145021. The next prime is 133145041. The reversal of 133145032 is 230541331.

It can be written as a sum of positive squares in 2 ways, for example, as 120428676 + 12716356 = 10974^2 + 3566^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133144994 and 133145012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286719 + ... + 287182.

Almost surely, 2^133145032 is an apocalyptic number.

It is an amenable number.

133145032 is a deficient number, since it is larger than the sum of its proper divisors (125110868).

133145032 is a wasteful number, since it uses less digits than its factorization.

133145032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573936 (or 573932 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 133145032 is about 11538.8488160648. The cubic root of 133145032 is about 510.6323464798.

Adding to 133145032 its reverse (230541331), we get a palindrome (363686363).

The spelling of 133145032 in words is "one hundred thirty-three million, one hundred forty-five thousand, thirty-two".