10142866 has 8 divisors (see below), whose sum is σ = 15739020. Its totient is φ = 4896528.

The previous prime is 10142861. The next prime is 10142879. The reversal of 10142866 is 66824101.

It can be written as a sum of positive squares in 2 ways, for example, as 9455625 + 687241 = 3075^2 + 829^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10142861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87381 + ... + 87496.

Almost surely, 2^10142866 is an apocalyptic number.

10142866 is a deficient number, since it is larger than the sum of its proper divisors (5596154).

10142866 is a wasteful number, since it uses less digits than its factorization.

10142866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174908.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 10142866 is about 3184.7866490552. The cubic root of 10142866 is about 216.4646063603.

Adding to 10142866 its reverse (66824101), we get a palindrome (76966967).

The spelling of 10142866 in words is "ten million, one hundred forty-two thousand, eight hundred sixty-six".