33153145 has 16 divisors (see below), whose sum is σ = 42568848. Its totient is φ = 24698880.

The previous prime is 33153139. The next prime is 33153151. The reversal of 33153145 is 54135133.

It is an interprime number because it is at equal distance from previous prime (33153139) and next prime (33153151).

It can be written as a sum of positive squares in 8 ways, for example, as 1557504 + 31595641 = 1248^2 + 5621^2 .

It is a de Polignac number, because none of the positive numbers 2^k-33153145 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6235 + ... + 10255.

It is an arithmetic number, because the mean of its divisors is an integer number (2660553).

Almost surely, 2^33153145 is an apocalyptic number.

It is an amenable number.

33153145 is a deficient number, since it is larger than the sum of its proper divisors (9415703).

33153145 is a wasteful number, since it uses less digits than its factorization.

33153145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140.

The product of its digits is 2700, while the sum is 25.

The square root of 33153145 is about 5757.8767788135. The cubic root of 33153145 is about 321.2488470639.

Adding to 33153145 its reverse (54135133), we get a palindrome (87288278).

The spelling of 33153145 in words is "thirty-three million, one hundred fifty-three thousand, one hundred forty-five".