33157245 has 32 divisors (see below), whose sum is σ = 58466304. Its totient is φ = 15912000.

The previous prime is 33157211. The next prime is 33157253. The reversal of 33157245 is 54275133.

It is not a de Polignac number, because 33157245 - 2⁸ = 33156989 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 16020 + ... + 17970.

It is an arithmetic number, because the mean of its divisors is an integer number (1827072).

Almost surely, 2^33157245 is an apocalyptic number.

It is an amenable number.

33157245 is a deficient number, since it is larger than the sum of its proper divisors (25309059).

33157245 is a wasteful number, since it uses less digits than its factorization.

33157245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073.

The product of its digits is 12600, while the sum is 30.

The square root of 33157245 is about 5758.2328018238. The cubic root of 33157245 is about 321.2620893067.

The spelling of 33157245 in words is "thirty-three million, one hundred fifty-seven thousand, two hundred forty-five".