112725821 has 8 divisors (see below), whose sum is σ = 121645440. Its totient is φ = 103841712.

The previous prime is 112725799. The next prime is 112725839. The reversal of 112725821 is 128527211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112725821 - 2¹⁰ = 112724797 is a prime.

It is a super-2 number, since 2×112725821² = 25414221440248082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112725121) 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, 2081 + ... + 15158.

It is an arithmetic number, because the mean of its divisors is an integer number (15205680).

Almost surely, 2^112725821 is an apocalyptic number.

It is an amenable number.

112725821 is a deficient number, since it is larger than the sum of its proper divisors (8919619).

112725821 is a wasteful number, since it uses less digits than its factorization.

112725821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17755.

The product of its digits is 2240, while the sum is 29.

The square root of 112725821 is about 10617.2416851082. The cubic root of 112725821 is about 483.0674805377.

The spelling of 112725821 in words is "one hundred twelve million, seven hundred twenty-five thousand, eight hundred twenty-one".