81114170 has 8 divisors (see below), whose sum is σ = 146005524. Its totient is φ = 32445664.

The previous prime is 81114167. The next prime is 81114199. The reversal of 81114170 is 7141118.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79405921 + 1708249 = 8911^2 + 1307^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4055699 + ... + 4055718.

Almost surely, 2^81114170 is an apocalyptic number.

81114170 is a deficient number, since it is larger than the sum of its proper divisors (64891354).

81114170 is a wasteful number, since it uses less digits than its factorization.

81114170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8111424.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 81114170 is about 9006.3405443054. The cubic root of 81114170 is about 432.8780616232.

Adding to 81114170 its reverse (7141118), we get a palindrome (88255288).

The spelling of 81114170 in words is "eighty-one million, one hundred fourteen thousand, one hundred seventy".