33957145 has 4 divisors (see below), whose sum is σ = 40748580. Its totient is φ = 27165712.

The previous prime is 33957139. The next prime is 33957151. The reversal of 33957145 is 54175933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54175933 = 7 ⋅7739419.

It is an interprime number because it is at equal distance from previous prime (33957139) and next prime (33957151).

It can be written as a sum of positive squares in 2 ways, for example, as 25593481 + 8363664 = 5059^2 + 2892^2 .

It is a cyclic number.

It is not a de Polignac number, because 33957145 - 2³ = 33957137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3395710 + ... + 3395719.

It is an arithmetic number, because the mean of its divisors is an integer number (10187145).

Almost surely, 2^33957145 is an apocalyptic number.

It is an amenable number.

33957145 is a deficient number, since it is larger than the sum of its proper divisors (6791435).

33957145 is an equidigital number, since it uses as much as digits as its factorization.

33957145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791434.

The product of its digits is 56700, while the sum is 37.

The square root of 33957145 is about 5827.2759502189. The cubic root of 33957145 is about 323.8250115639.

The spelling of 33957145 in words is "thirty-three million, nine hundred fifty-seven thousand, one hundred forty-five".