14820138397 has 8 divisors (see below), whose sum is σ = 15228380376. Its totient is φ = 14412301632.

The previous prime is 14820138379. The next prime is 14820138407. The reversal of 14820138397 is 79383102841.

It can be written as a sum of positive squares in 4 ways, for example, as 3146200281 + 11673938116 = 56091^2 + 108046^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14820138397 - 2¹⁹ = 14819614109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14820138367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26398 + ... + 174175.

It is an arithmetic number, because the mean of its divisors is an integer number (1903547547).

Almost surely, 2^14820138397 is an apocalyptic number.

It is an amenable number.

14820138397 is a deficient number, since it is larger than the sum of its proper divisors (408241979).

14820138397 is a wasteful number, since it uses less digits than its factorization.

14820138397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202607.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 14820138397 in words is "fourteen billion, eight hundred twenty million, one hundred thirty-eight thousand, three hundred ninety-seven".