33145353 has 6 divisors (see below), whose sum is σ = 47876634. Its totient is φ = 22096896.

The previous prime is 33145339. The next prime is 33145379. The reversal of 33145353 is 35354133.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 33143049 + 2304 = 5757^2 + 48^2 .

It is not a de Polignac number, because 33145353 - 2⁴ = 33145337 is a prime.

It is a super-2 number, since 2×33145353² = 2197228850989218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33145313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1841400 + ... + 1841417.

It is an arithmetic number, because the mean of its divisors is an integer number (7979439).

Almost surely, 2^33145353 is an apocalyptic number.

It is an amenable number.

33145353 is a deficient number, since it is larger than the sum of its proper divisors (14731281).

33145353 is a wasteful number, since it uses less digits than its factorization.

33145353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682823 (or 3682820 counting only the distinct ones).

The product of its digits is 8100, while the sum is 27.

The square root of 33145353 is about 5757.2001007434. The cubic root of 33145353 is about 321.2236773337.

Adding to 33145353 its reverse (35354133), we get a palindrome (68499486).

The spelling of 33145353 in words is "thirty-three million, one hundred forty-five thousand, three hundred fifty-three".