8140172 has 6 divisors (see below), whose sum is σ = 14245308. Its totient is φ = 4070084.

The previous prime is 8140163. The next prime is 8140177. The reversal of 8140172 is 2710418.

It is not an unprimeable number, because it can be changed into a prime (8140177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1017518 + ... + 1017525.

It is an arithmetic number, because the mean of its divisors is an integer number (2374218).

Almost surely, 2^8140172 is an apocalyptic number.

It is an amenable number.

8140172 is a deficient number, since it is larger than the sum of its proper divisors (6105136).

8140172 is a wasteful number, since it uses less digits than its factorization.

8140172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035047 (or 2035045 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 8140172 is about 2853.0986663626. The cubic root of 8140172 is about 201.1613433553.

The spelling of 8140172 in words is "eight million, one hundred forty thousand, one hundred seventy-two".