10142427 has 4 divisors (see below), whose sum is σ = 13523240. Its totient is φ = 6761616.

The previous prime is 10142399. The next prime is 10142441. The reversal of 10142427 is 72424101.

It is a happy number.

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

It is not a de Polignac number, because 10142427 - 2⁷ = 10142299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10142467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690402 + ... + 1690407.

It is an arithmetic number, because the mean of its divisors is an integer number (3380810).

Almost surely, 2^10142427 is an apocalyptic number.

10142427 is a deficient number, since it is larger than the sum of its proper divisors (3380813).

10142427 is an equidigital number, since it uses as much as digits as its factorization.

10142427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380812.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 10142427 is about 3184.7177268951. The cubic root of 10142427 is about 216.4614833333.

Adding to 10142427 its reverse (72424101), we get a palindrome (82566528).

The spelling of 10142427 in words is "ten million, one hundred forty-two thousand, four hundred twenty-seven".