112142542 has 4 divisors (see below), whose sum is σ = 168213816. Its totient is φ = 56071270.

The previous prime is 112142519. The next prime is 112142543. The reversal of 112142542 is 245241211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245241211 = 4729 ⋅51859.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112142543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28035634 + ... + 28035637.

It is an arithmetic number, because the mean of its divisors is an integer number (42053454).

Almost surely, 2^112142542 is an apocalyptic number.

112142542 is a deficient number, since it is larger than the sum of its proper divisors (56071274).

112142542 is an equidigital number, since it uses as much as digits as its factorization.

112142542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56071273.

The product of its digits is 640, while the sum is 22.

The square root of 112142542 is about 10589.7375793737. The cubic root of 112142542 is about 482.2328581077.

Adding to 112142542 its reverse (245241211), we get a palindrome (357383753).

The spelling of 112142542 in words is "one hundred twelve million, one hundred forty-two thousand, five hundred forty-two".