1013865419 has 6 divisors (see below), whose sum is σ = 1179394524. Its totient is φ = 869027460.

The previous prime is 1013865389. The next prime is 1013865427. The reversal of 1013865419 is 9145683101.

It is not a de Polignac number, because 1013865419 - 2⁸ = 1013865163 is a prime.

It is a super-2 number, since 2×1013865419² = 2055846175688091122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1013865439) 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 in 5 ways as a sum of consecutive naturals, for example, 10345517 + ... + 10345614.

It is an arithmetic number, because the mean of its divisors is an integer number (196565754).

Almost surely, 2^1013865419 is an apocalyptic number.

1013865419 is a deficient number, since it is larger than the sum of its proper divisors (165529105).

1013865419 is an equidigital number, since it uses as much as digits as its factorization.

1013865419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20691145 (or 20691138 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1013865419 is about 31841.2534143994. The cubic root of 1013865419 is about 1004.6006082786.

It can be divided in two parts, 10138 and 65419, that added together give a palindrome (75557).

The spelling of 1013865419 in words is "one billion, thirteen million, eight hundred sixty-five thousand, four hundred nineteen".