112161420 has 72 divisors (see below), whose sum is σ = 388830624. Its totient is φ = 25636608.

The previous prime is 112161407. The next prime is 112161421. The reversal of 112161420 is 24161211.

112161420 is a `hidden beast` number, since 11 + 21 + 614 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112161393 and 112161402.

It is not an unprimeable number, because it can be changed into a prime (112161421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43249 + ... + 45768.

Almost surely, 2^112161420 is an apocalyptic number.

112161420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112161420 is an abundant number, since it is smaller than the sum of its proper divisors (276669204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112161420 is a wasteful number, since it uses less digits than its factorization.

112161420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89039 (or 89034 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 112161420 is about 10590.6288765115. The cubic root of 112161420 is about 482.2599161743.

The spelling of 112161420 in words is "one hundred twelve million, one hundred sixty-one thousand, four hundred twenty".