3124691989 has 2 divisors, whose sum is σ = 3124691990. Its totient is φ = 3124691988.

The previous prime is 3124691939. The next prime is 3124692017. The reversal of 3124691989 is 9891964213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2863320100 + 261371889 = 53510^2 + 16167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3124691989 is a prime.

It is a super-2 number, since 2×3124691989² = 19527400052241552242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3124691939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562345994 + 1562345995.

It is an arithmetic number, because the mean of its divisors is an integer number (1562345995).

Almost surely, 2^3124691989 is an apocalyptic number.

It is an amenable number.

3124691989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3124691989 is an equidigital number, since it uses as much as digits as its factorization.

3124691989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 52.

The square root of 3124691989 is about 55898.9444354721. The cubic root of 3124691989 is about 1461.9608339481.

The spelling of 3124691989 in words is "three billion, one hundred twenty-four million, six hundred ninety-one thousand, nine hundred eighty-nine".