33161197 has 2 divisors, whose sum is σ = 33161198. Its totient is φ = 33161196.

The previous prime is 33161171. The next prime is 33161201. The reversal of 33161197 is 79116133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32592681 + 568516 = 5709^2 + 754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33161197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33161797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16580598 + 16580599.

It is an arithmetic number, because the mean of its divisors is an integer number (16580599).

Almost surely, 2^33161197 is an apocalyptic number.

It is an amenable number.

33161197 is a deficient number, since it is larger than the sum of its proper divisors (1).

33161197 is an equidigital number, since it uses as much as digits as its factorization.

33161197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 31.

The square root of 33161197 is about 5758.5759524382. The cubic root of 33161197 is about 321.2748525036.

The spelling of 33161197 in words is "thirty-three million, one hundred sixty-one thousand, one hundred ninety-seven".