33136749 has 16 divisors (see below), whose sum is σ = 49353600. Its totient is φ = 21973248.

The previous prime is 33136729. The next prime is 33136751. The reversal of 33136749 is 94763133.

It is not a de Polignac number, because 33136749 - 2⁵ = 33136717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33136709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2032 + ... + 8390.

It is an arithmetic number, because the mean of its divisors is an integer number (3084600).

Almost surely, 2^33136749 is an apocalyptic number.

It is an amenable number.

33136749 is a deficient number, since it is larger than the sum of its proper divisors (16216851).

33136749 is a wasteful number, since it uses less digits than its factorization.

33136749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6561 (or 6555 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 33136749 is about 5756.4528140166. The cubic root of 33136749 is about 321.1958800967.

The spelling of 33136749 in words is "thirty-three million, one hundred thirty-six thousand, seven hundred forty-nine".