1392165493 has 2 divisors, whose sum is σ = 1392165494. Its totient is φ = 1392165492.

The previous prime is 1392165457. The next prime is 1392165497. The reversal of 1392165493 is 3945612931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 707453604 + 684711889 = 26598^2 + 26167^2 .

It is a cyclic number.

It is not a de Polignac number, because 1392165493 - 2²¹ = 1390068341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1392165497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696082746 + 696082747.

It is an arithmetic number, because the mean of its divisors is an integer number (696082747).

Almost surely, 2^1392165493 is an apocalyptic number.

It is an amenable number.

1392165493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392165493 is an equidigital number, since it uses as much as digits as its factorization.

1392165493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 43.

The square root of 1392165493 is about 37311.7339854368. The cubic root of 1392165493 is about 1116.5982811120.

The spelling of 1392165493 in words is "one billion, three hundred ninety-two million, one hundred sixty-five thousand, four hundred ninety-three".