10215142 has 32 divisors (see below), whose sum is σ = 18144000. Its totient is φ = 4223328.

The previous prime is 10215119. The next prime is 10215157. The reversal of 10215142 is 24151201.

10215142 = 309² + 310² + ... + 391².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68484 + ... + 68632.

It is an arithmetic number, because the mean of its divisors is an integer number (567000).

Almost surely, 2^10215142 is an apocalyptic number.

10215142 is a deficient number, since it is larger than the sum of its proper divisors (7928858).

10215142 is a wasteful number, since it uses less digits than its factorization.

10215142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 10215142 is about 3196.1135774562. The cubic root of 10215142 is about 216.9775508217.

Adding to 10215142 its reverse (24151201), we get a palindrome (34366343).

The spelling of 10215142 in words is "ten million, two hundred fifteen thousand, one hundred forty-two".