1392099109 has 2 divisors, whose sum is σ = 1392099110. Its totient is φ = 1392099108.

The previous prime is 1392099091. The next prime is 1392099119. The reversal of 1392099109 is 9019902931.

Together with previous prime (1392099091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1390544100 + 1555009 = 37290^2 + 1247^2 .

It is a cyclic number.

It is not a de Polignac number, because 1392099109 - 2¹⁵ = 1392066341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1392099119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696049554 + 696049555.

It is an arithmetic number, because the mean of its divisors is an integer number (696049555).

Almost surely, 2^1392099109 is an apocalyptic number.

It is an amenable number.

1392099109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392099109 is an equidigital number, since it uses as much as digits as its factorization.

1392099109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39366, while the sum is 43.

The square root of 1392099109 is about 37310.8443887297. The cubic root of 1392099109 is about 1116.5805328776.

The spelling of 1392099109 in words is "one billion, three hundred ninety-two million, ninety-nine thousand, one hundred nine".