112542021 has 8 divisors (see below), whose sum is σ = 166728960. Its totient is φ = 75027996.

The previous prime is 112541971. The next prime is 112542037. The reversal of 112542021 is 120245211.

It is not a de Polignac number, because 112542021 - 2⁹ = 112541509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112541985 and 112542003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112542041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2084085 + ... + 2084138.

It is an arithmetic number, because the mean of its divisors is an integer number (20841120).

Almost surely, 2^112542021 is an apocalyptic number.

It is an amenable number.

112542021 is a deficient number, since it is larger than the sum of its proper divisors (54186939).

112542021 is an equidigital number, since it uses as much as digits as its factorization.

112542021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4168232 (or 4168226 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 112542021 is about 10608.5824217942. The cubic root of 112542021 is about 482.8047897534.

Adding to 112542021 its reverse (120245211), we get a palindrome (232787232).

The spelling of 112542021 in words is "one hundred twelve million, five hundred forty-two thousand, twenty-one".