1492981513 has 2 divisors, whose sum is σ = 1492981514. Its totient is φ = 1492981512.

The previous prime is 1492981493. The next prime is 1492981519. The reversal of 1492981513 is 3151892941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1148396544 + 344584969 = 33888^2 + 18563^2 .

It is a cyclic number.

It is not a de Polignac number, because 1492981513 - 2⁹ = 1492981001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1492981513.

It is not a weakly prime, because it can be changed into another prime (1492981519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746490756 + 746490757.

It is an arithmetic number, because the mean of its divisors is an integer number (746490757).

Almost surely, 2^1492981513 is an apocalyptic number.

It is an amenable number.

1492981513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1492981513 is an equidigital number, since it uses as much as digits as its factorization.

1492981513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The square root of 1492981513 is about 38639.1189469946. The cubic root of 1492981513 is about 1142.9260813764.

The spelling of 1492981513 in words is "one billion, four hundred ninety-two million, nine hundred eighty-one thousand, five hundred thirteen".