1373018985 has 64 divisors (see below), whose sum is σ = 2713589760. Its totient is φ = 654117120.

The previous prime is 1373018953. The next prime is 1373018993. The reversal of 1373018985 is 5898103731.

It is not a de Polignac number, because 1373018985 - 2⁵ = 1373018953 is a prime.

It is a super-2 number, since 2×1373018985² = 3770362266340860450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1373018985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41787 + ... + 67023.

It is an arithmetic number, because the mean of its divisors is an integer number (42399840).

Almost surely, 2^1373018985 is an apocalyptic number.

1373018985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1373018985 is a deficient number, since it is larger than the sum of its proper divisors (1340570775).

1373018985 is a wasteful number, since it uses less digits than its factorization.

1373018985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25295 (or 25289 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 1373018985 is about 37054.2708064806. The cubic root of 1373018985 is about 1111.4557597753.

The spelling of 1373018985 in words is "one billion, three hundred seventy-three million, eighteen thousand, nine hundred eighty-five".