1379890159 has 2 divisors, whose sum is σ = 1379890160. Its totient is φ = 1379890158.

The previous prime is 1379890147. The next prime is 1379890163. The reversal of 1379890159 is 9510989731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1379890159 - 2⁹ = 1379889647 is a prime.

It is a super-3 number, since 3×1379890159³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1379890559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689945079 + 689945080.

It is an arithmetic number, because the mean of its divisors is an integer number (689945080).

Almost surely, 2^1379890159 is an apocalyptic number.

1379890159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379890159 is an equidigital number, since it uses as much as digits as its factorization.

1379890159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 52.

The square root of 1379890159 is about 37146.8728024312. The cubic root of 1379890159 is about 1113.3067420970.

The spelling of 1379890159 in words is "one billion, three hundred seventy-nine million, eight hundred ninety thousand, one hundred fifty-nine".