10242142 has 4 divisors (see below), whose sum is σ = 15363216. Its totient is φ = 5121070.

The previous prime is 10242137. The next prime is 10242149. The reversal of 10242142 is 24124201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10242149) 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, 2560534 + ... + 2560537.

It is an arithmetic number, because the mean of its divisors is an integer number (3840804).

Almost surely, 2^10242142 is an apocalyptic number.

10242142 is a deficient number, since it is larger than the sum of its proper divisors (5121074).

10242142 is an equidigital number, since it uses as much as digits as its factorization.

10242142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121073.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 10242142 is about 3200.3346699994. The cubic root of 10242142 is about 217.1685496327.

Adding to 10242142 its reverse (24124201), we get a palindrome (34366343).

The spelling of 10242142 in words is "ten million, two hundred forty-two thousand, one hundred forty-two".