112420551 has 4 divisors (see below), whose sum is σ = 149894072. Its totient is φ = 74947032.

The previous prime is 112420543. The next prime is 112420577. The reversal of 112420551 is 155024211.

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

It is not a de Polignac number, because 112420551 - 2³ = 112420543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112420531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18736756 + ... + 18736761.

It is an arithmetic number, because the mean of its divisors is an integer number (37473518).

Almost surely, 2^112420551 is an apocalyptic number.

112420551 is a deficient number, since it is larger than the sum of its proper divisors (37473521).

112420551 is an equidigital number, since it uses as much as digits as its factorization.

112420551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37473520.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 112420551 is about 10602.8557945489. The cubic root of 112420551 is about 482.6310252948.

Adding to 112420551 its reverse (155024211), we get a palindrome (267444762).

The spelling of 112420551 in words is "one hundred twelve million, four hundred twenty thousand, five hundred fifty-one".