1495389769 has 2 divisors, whose sum is σ = 1495389770. Its totient is φ = 1495389768.

The previous prime is 1495389719. The next prime is 1495389773. The reversal of 1495389769 is 9679835941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1416393225 + 78996544 = 37635^2 + 8888^2 .

It is a cyclic number.

It is not a de Polignac number, because 1495389769 - 2⁷ = 1495389641 is a prime.

It is a super-2 number, since 2×1495389769² = 4472381122459746722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1495389719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747694884 + 747694885.

It is an arithmetic number, because the mean of its divisors is an integer number (747694885).

Almost surely, 2^1495389769 is an apocalyptic number.

It is an amenable number.

1495389769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1495389769 is an equidigital number, since it uses as much as digits as its factorization.

1495389769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14696640, while the sum is 61.

The square root of 1495389769 is about 38670.2698335556. The cubic root of 1495389769 is about 1143.5402841069.

The spelling of 1495389769 in words is "one billion, four hundred ninety-five million, three hundred eighty-nine thousand, seven hundred sixty-nine".