13998146 has 4 divisors (see below), whose sum is σ = 20997222. Its totient is φ = 6999072.

The previous prime is 13998137. The next prime is 13998161. The reversal of 13998146 is 64189931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9954025 + 4044121 = 3155^2 + 2011^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3499535 + ... + 3499538.

Almost surely, 2^13998146 is an apocalyptic number.

13998146 is a deficient number, since it is larger than the sum of its proper divisors (6999076).

13998146 is an equidigital number, since it uses as much as digits as its factorization.

13998146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6999075.

The product of its digits is 46656, while the sum is 41.

The square root of 13998146 is about 3741.4096273998. The cubic root of 13998146 is about 241.0035868913.

The spelling of 13998146 in words is "thirteen million, nine hundred ninety-eight thousand, one hundred forty-six".