1379443099 has 2 divisors, whose sum is σ = 1379443100. Its totient is φ = 1379443098.

The previous prime is 1379443097. The next prime is 1379443141. The reversal of 1379443099 is 9903449731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1379443099 - 2¹ = 1379443097 is a prime.

Together with 1379443097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1379443097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689721549 + 689721550.

It is an arithmetic number, because the mean of its divisors is an integer number (689721550).

Almost surely, 2^1379443099 is an apocalyptic number.

1379443099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379443099 is an equidigital number, since it uses as much as digits as its factorization.

1379443099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 1379443099 is about 37140.8548501512. The cubic root of 1379443099 is about 1113.1864985475.

The spelling of 1379443099 in words is "one billion, three hundred seventy-nine million, four hundred forty-three thousand, ninety-nine".