3149917 has 2 divisors, whose sum is σ = 3149918. Its totient is φ = 3149916.

The previous prime is 3149911. The next prime is 3149929. The reversal of 3149917 is 7199413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2013561 + 1136356 = 1419^2 + 1066^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3149917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3149911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1574958 + 1574959.

It is an arithmetic number, because the mean of its divisors is an integer number (1574959).

Almost surely, 2^3149917 is an apocalyptic number.

It is an amenable number.

3149917 is a deficient number, since it is larger than the sum of its proper divisors (1).

3149917 is an equidigital number, since it uses as much as digits as its factorization.

3149917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 34.

The square root of 3149917 is about 1774.8005521748. The cubic root of 3149917 is about 146.5884333689.

The spelling of 3149917 in words is "three million, one hundred forty-nine thousand, nine hundred seventeen".