161112471 has 8 divisors (see below), whose sum is σ = 231341040. Its totient is φ = 99146112.

The previous prime is 161112463. The next prime is 161112491. The reversal of 161112471 is 174211161.

161112471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 161112471 - 2³ = 161112463 is a prime.

It is a super-3 number, since 3×161112471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161112491) 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, 2065506 + ... + 2065583.

It is an arithmetic number, because the mean of its divisors is an integer number (28917630).

Almost surely, 2^161112471 is an apocalyptic number.

161112471 is a deficient number, since it is larger than the sum of its proper divisors (70228569).

161112471 is a wasteful number, since it uses less digits than its factorization.

161112471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131105.

The product of its digits is 336, while the sum is 24.

The square root of 161112471 is about 12693.0087449745. The cubic root of 161112471 is about 544.1388313036.

The spelling of 161112471 in words is "one hundred sixty-one million, one hundred twelve thousand, four hundred seventy-one".