10242542 has 4 divisors (see below), whose sum is σ = 15363816. Its totient is φ = 5121270.

The previous prime is 10242527. The next prime is 10242553. The reversal of 10242542 is 24524201.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2560634 + ... + 2560637.

It is an arithmetic number, because the mean of its divisors is an integer number (3840954).

Almost surely, 2^10242542 is an apocalyptic number.

10242542 is a deficient number, since it is larger than the sum of its proper divisors (5121274).

10242542 is an equidigital number, since it uses as much as digits as its factorization.

10242542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121273.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 10242542 is about 3200.3971628534. The cubic root of 10242542 is about 217.1713767200.

Adding to 10242542 its reverse (24524201), we get a palindrome (34766743).

The spelling of 10242542 in words is "ten million, two hundred forty-two thousand, five hundred forty-two".