8140199 has 4 divisors (see below), whose sum is σ = 8169864. Its totient is φ = 8110536.

The previous prime is 8140177. The next prime is 8140211. The reversal of 8140199 is 9910418.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8140199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8140109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14417 + ... + 14970.

It is an arithmetic number, because the mean of its divisors is an integer number (2042466).

Almost surely, 2^8140199 is an apocalyptic number.

8140199 is a deficient number, since it is larger than the sum of its proper divisors (29665).

8140199 is a wasteful number, since it uses less digits than its factorization.

8140199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29664.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 8140199 is about 2853.1033980562. The cubic root of 8140199 is about 201.1615657647.

The spelling of 8140199 in words is "eight million, one hundred forty thousand, one hundred ninety-nine".