3102949 has 2 divisors, whose sum is σ = 3102950. Its totient is φ = 3102948.

The previous prime is 3102941. The next prime is 3102961. The reversal of 3102949 is 9492013.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2122849 + 980100 = 1457^2 + 990^2 .

It is an emirp because it is prime and its reverse (9492013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3102949 - 2³ = 3102941 is a prime.

It is a Chen prime.

It is equal to p₂₂₃₆₈₇ and since 3102949 and 223687 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3102941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1551474 + 1551475.

It is an arithmetic number, because the mean of its divisors is an integer number (1551475).

Almost surely, 2^3102949 is an apocalyptic number.

It is an amenable number.

3102949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3102949 is an equidigital number, since it uses as much as digits as its factorization.

3102949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 3102949 is about 1761.5189468183. The cubic root of 3102949 is about 145.8561948014.

The spelling of 3102949 in words is "three million, one hundred two thousand, nine hundred forty-nine".