3149381 has 2 divisors, whose sum is σ = 3149382. Its totient is φ = 3149380.

The previous prime is 3149359. The next prime is 3149387. The reversal of 3149381 is 1839413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3118756 + 30625 = 1766^2 + 175^2 .

It is an emirp because it is prime and its reverse (1839413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3149381 - 2¹⁸ = 2887237 is a prime.

It is a super-2 number, since 2×3149381² = 19837201366322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3149387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1574690 + 1574691.

It is an arithmetic number, because the mean of its divisors is an integer number (1574691).

Almost surely, 2^3149381 is an apocalyptic number.

It is an amenable number.

3149381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3149381 is an equidigital number, since it uses as much as digits as its factorization.

3149381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 3149381 is about 1774.6495428675. The cubic root of 3149381 is about 146.5801182443.

The spelling of 3149381 in words is "three million, one hundred forty-nine thousand, three hundred eighty-one".