8210142 has 12 divisors (see below), whose sum is σ = 17788680. Its totient is φ = 2736708.

The previous prime is 8210141. The next prime is 8210159. The reversal of 8210142 is 2410128.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 456119 = 8210142 / (8 + 2 + 1 + 0 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8210141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228042 + ... + 228077.

It is an arithmetic number, because the mean of its divisors is an integer number (1482390).

Almost surely, 2^8210142 is an apocalyptic number.

8210142 is an abundant number, since it is smaller than the sum of its proper divisors (9578538).

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

8210142 is a wasteful number, since it uses less digits than its factorization.

8210142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456127 (or 456124 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 8210142 is about 2865.3345354426. The cubic root of 8210142 is about 201.7360700341.

The spelling of 8210142 in words is "eight million, two hundred ten thousand, one hundred forty-two".