10142266 has 4 divisors (see below), whose sum is σ = 15213402. Its totient is φ = 5071132.

The previous prime is 10142233. The next prime is 10142267. The reversal of 10142266 is 66224101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10055241 + 87025 = 3171^2 + 295^2 .

It is a super-2 number, since 2×10142266² = 205731119229512, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (10142267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2535565 + ... + 2535568.

Almost surely, 2^10142266 is an apocalyptic number.

10142266 is a deficient number, since it is larger than the sum of its proper divisors (5071136).

10142266 is an equidigital number, since it uses as much as digits as its factorization.

10142266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071135.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 10142266 is about 3184.6924498293. The cubic root of 10142266 is about 216.4603379636.

Adding to 10142266 its reverse (66224101), we get a palindrome (76366367).

The spelling of 10142266 in words is "ten million, one hundred forty-two thousand, two hundred sixty-six".