1495257793 has 2 divisors, whose sum is σ = 1495257794. Its totient is φ = 1495257792.

The previous prime is 1495257773. The next prime is 1495257811. The reversal of 1495257793 is 3977525941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 854509824 + 640747969 = 29232^2 + 25313^2 .

It is a cyclic number.

It is not a de Polignac number, because 1495257793 - 2²⁵ = 1461703361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1495257793.

It is not a weakly prime, because it can be changed into another prime (1495257703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747628896 + 747628897.

It is an arithmetic number, because the mean of its divisors is an integer number (747628897).

Almost surely, 2^1495257793 is an apocalyptic number.

It is an amenable number.

1495257793 is a deficient number, since it is larger than the sum of its proper divisors (1).

1495257793 is an equidigital number, since it uses as much as digits as its factorization.

1495257793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 52.

The square root of 1495257793 is about 38668.5633687108. The cubic root of 1495257793 is about 1143.5066419721.

The spelling of 1495257793 in words is "one billion, four hundred ninety-five million, two hundred fifty-seven thousand, seven hundred ninety-three".