1380619859 has 2 divisors, whose sum is σ = 1380619860. Its totient is φ = 1380619858.

The previous prime is 1380619853. The next prime is 1380619897. The reversal of 1380619859 is 9589160831.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1380619859 - 2²⁰ = 1379571283 is a prime.

It is a super-2 number, since 2×1380619859² = 3812222390130359762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1380619853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690309929 + 690309930.

It is an arithmetic number, because the mean of its divisors is an integer number (690309930).

Almost surely, 2^1380619859 is an apocalyptic number.

1380619859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380619859 is an equidigital number, since it uses as much as digits as its factorization.

1380619859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 50.

The square root of 1380619859 is about 37156.6933270441. The cubic root of 1380619859 is about 1113.5029501715.

The spelling of 1380619859 in words is "one billion, three hundred eighty million, six hundred nineteen thousand, eight hundred fifty-nine".