33013745 has 32 divisors (see below), whose sum is σ = 44323200. Its totient is φ = 23489536.

The previous prime is 33013727. The next prime is 33013759. The reversal of 33013745 is 54731033.

It is not a de Polignac number, because 33013745 - 2⁶ = 33013681 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145322 + ... + 145548.

It is an arithmetic number, because the mean of its divisors is an integer number (1385100).

Almost surely, 2^33013745 is an apocalyptic number.

It is an amenable number.

33013745 is a deficient number, since it is larger than the sum of its proper divisors (11309455).

33013745 is a wasteful number, since it uses less digits than its factorization.

33013745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 33013745 is about 5745.7588706802. The cubic root of 33013745 is about 320.7979597064.

Adding to 33013745 its reverse (54731033), we get a palindrome (87744778).

The spelling of 33013745 in words is "thirty-three million, thirteen thousand, seven hundred forty-five".