81477114 has 16 divisors (see below), whose sum is σ = 168211200. Its totient is φ = 26282880.

The previous prime is 81477103. The next prime is 81477133. The reversal of 81477114 is 41177418.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218839 + ... + 219210.

It is an arithmetic number, because the mean of its divisors is an integer number (10513200).

Almost surely, 2^81477114 is an apocalyptic number.

81477114 is an abundant number, since it is smaller than the sum of its proper divisors (86734086).

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

81477114 is a wasteful number, since it uses less digits than its factorization.

81477114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438085.

The product of its digits is 6272, while the sum is 33.

The square root of 81477114 is about 9026.4674153292. The cubic root of 81477114 is about 433.5227362694.

The spelling of 81477114 in words is "eighty-one million, four hundred seventy-seven thousand, one hundred fourteen".