8102140 has 24 divisors (see below), whose sum is σ = 17110800. Its totient is φ = 3222528.

The previous prime is 8102137. The next prime is 8102167. The reversal of 8102140 is 412018.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2811 + ... + 4909.

It is an arithmetic number, because the mean of its divisors is an integer number (712950).

Almost surely, 2^8102140 is an apocalyptic number.

It is an amenable number.

8102140 is an abundant number, since it is smaller than the sum of its proper divisors (9008660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8102140 is a wasteful number, since it uses less digits than its factorization.

8102140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301 (or 2299 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 8102140 is about 2846.4258290003. The cubic root of 8102140 is about 200.8475697206.

Adding to 8102140 its reverse (412018), we get a palindrome (8514158).

The spelling of 8102140 in words is "eight million, one hundred two thousand, one hundred forty".