33137161 has 2 divisors, whose sum is σ = 33137162. Its totient is φ = 33137160.

The previous prime is 33137147. The next prime is 33137177. The reversal of 33137161 is 16173133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33131536 + 5625 = 5756^2 + 75^2 .

It is an emirp because it is prime and its reverse (16173133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33137161 - 2⁵ = 33137129 is a prime.

It is not a weakly prime, because it can be changed into another prime (33132161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16568580 + 16568581.

It is an arithmetic number, because the mean of its divisors is an integer number (16568581).

Almost surely, 2^33137161 is an apocalyptic number.

It is an amenable number.

33137161 is a deficient number, since it is larger than the sum of its proper divisors (1).

33137161 is an equidigital number, since it uses as much as digits as its factorization.

33137161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134, while the sum is 25.

The square root of 33137161 is about 5756.4885998324. The cubic root of 33137161 is about 321.1972112688.

The spelling of 33137161 in words is "thirty-three million, one hundred thirty-seven thousand, one hundred sixty-one".