8140499 has 4 divisors (see below), whose sum is σ = 8221200. Its totient is φ = 8059800.

The previous prime is 8140441. The next prime is 8140519. The reversal of 8140499 is 9940418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9940418 = 2 ⋅4970209.

It is a de Polignac number, because none of the positive numbers 2^k-8140499 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (8140409) 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, 40199 + ... + 40400.

It is an arithmetic number, because the mean of its divisors is an integer number (2055300).

Almost surely, 2^8140499 is an apocalyptic number.

8140499 is a deficient number, since it is larger than the sum of its proper divisors (80701).

8140499 is a wasteful number, since it uses less digits than its factorization.

8140499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80700.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 8140499 is about 2853.1559719020. The cubic root of 8140499 is about 201.1640369462.

The spelling of 8140499 in words is "eight million, one hundred forty thousand, four hundred ninety-nine".