3124951481 has 2 divisors, whose sum is σ = 3124951482. Its totient is φ = 3124951480.

The previous prime is 3124951477. The next prime is 3124951483. The reversal of 3124951481 is 1841594213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1641546256 + 1483405225 = 40516^2 + 38515^2 .

It is a cyclic number.

It is not a de Polignac number, because 3124951481 - 2² = 3124951477 is a prime.

It is a super-2 number, since 2×3124951481² = 19530643517208186722, which contains 22 as substring.

Together with 3124951483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3124951483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562475740 + 1562475741.

It is an arithmetic number, because the mean of its divisors is an integer number (1562475741).

Almost surely, 2^3124951481 is an apocalyptic number.

It is an amenable number.

3124951481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3124951481 is an equidigital number, since it uses as much as digits as its factorization.

3124951481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 3124951481 is about 55901.2654686815. The cubic root of 3124951481 is about 1462.0013026451.

The spelling of 3124951481 in words is "three billion, one hundred twenty-four million, nine hundred fifty-one thousand, four hundred eighty-one".