1398104065 has 16 divisors (see below), whose sum is σ = 1772513280. Its totient is φ = 1056932800.

The previous prime is 1398104063. The next prime is 1398104069. The reversal of 1398104065 is 5604018931.

It is not a de Polignac number, because 1398104065 - 2¹ = 1398104063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1398104063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95761 + ... + 109390.

It is an arithmetic number, because the mean of its divisors is an integer number (110782080).

Almost surely, 2^1398104065 is an apocalyptic number.

It is an amenable number.

1398104065 is a deficient number, since it is larger than the sum of its proper divisors (374409215).

1398104065 is a wasteful number, since it uses less digits than its factorization.

1398104065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205232.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1398104065 is about 37391.2297872108. The cubic root of 1398104065 is about 1118.1837231123.

The spelling of 1398104065 in words is "one billion, three hundred ninety-eight million, one hundred four thousand, sixty-five".