8140245 has 8 divisors (see below), whose sum is σ = 13024416. Its totient is φ = 4341456.

The previous prime is 8140211. The next prime is 8140247. The reversal of 8140245 is 5420418.

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

It is not a de Polignac number, because 8140245 - 2⁷ = 8140117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8140247) 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, 271327 + ... + 271356.

It is an arithmetic number, because the mean of its divisors is an integer number (1628052).

Almost surely, 2^8140245 is an apocalyptic number.

It is an amenable number.

8140245 is a deficient number, since it is larger than the sum of its proper divisors (4884171).

8140245 is a wasteful number, since it uses less digits than its factorization.

8140245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542691.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 8140245 is about 2853.1114594421. Note that the first 3 decimals coincide. The cubic root of 8140245 is about 201.1619446831.

It can be divided in two parts, 8140 and 245, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 8140245 in words is "eight million, one hundred forty thousand, two hundred forty-five".