33147493 has 8 divisors (see below), whose sum is σ = 34633080. Its totient is φ = 31684800.

The previous prime is 33147487. The next prime is 33147503. The reversal of 33147493 is 39474133.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23648769 + 9498724 = 4863^2 + 3082^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33147493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33147403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2730 + ... + 8587.

It is an arithmetic number, because the mean of its divisors is an integer number (4329135).

Almost surely, 2^33147493 is an apocalyptic number.

It is an amenable number.

33147493 is a deficient number, since it is larger than the sum of its proper divisors (1485587).

33147493 is a wasteful number, since it uses less digits than its factorization.

33147493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11447.

The product of its digits is 27216, while the sum is 34.

The square root of 33147493 is about 5757.3859519751. The cubic root of 33147493 is about 321.2305903578.

The spelling of 33147493 in words is "thirty-three million, one hundred forty-seven thousand, four hundred ninety-three".