112155631 has 8 divisors (see below), whose sum is σ = 128261120. Its totient is φ = 96070968.

The previous prime is 112155629. The next prime is 112155661. The reversal of 112155631 is 136551211.

It is a happy number.

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

It is not a de Polignac number, because 112155631 - 2¹ = 112155629 is a prime.

It is a super-2 number, since 2×112155631² = 25157771130016322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112155596 and 112155605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112155601) 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, 8890 + ... + 17416.

It is an arithmetic number, because the mean of its divisors is an integer number (16032640).

Almost surely, 2^112155631 is an apocalyptic number.

112155631 is a deficient number, since it is larger than the sum of its proper divisors (16105489).

112155631 is an equidigital number, since it uses as much as digits as its factorization.

112155631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10413.

The product of its digits is 900, while the sum is 25.

The square root of 112155631 is about 10590.3555653245. The cubic root of 112155631 is about 482.2516190531.

It can be divided in two parts, 11 and 2155631, that multiplied together give a triangular number (23711941 = T₆₈₈₆).

The spelling of 112155631 in words is "one hundred twelve million, one hundred fifty-five thousand, six hundred thirty-one".