81414337 has 8 divisors (see below), whose sum is σ = 82184256. Its totient is φ = 80648112.

The previous prime is 81414329. The next prime is 81414341. The reversal of 81414337 is 73341418.

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

It is a cyclic number.

It is not a de Polignac number, because 81414337 - 2³ = 81414329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 81414299 and 81414308.

It is not an unprimeable number, because it can be changed into a prime (81414317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61638 + ... + 62944.

It is an arithmetic number, because the mean of its divisors is an integer number (10273032).

Almost surely, 2^81414337 is an apocalyptic number.

It is an amenable number.

81414337 is a deficient number, since it is larger than the sum of its proper divisors (769919).

81414337 is a wasteful number, since it uses less digits than its factorization.

81414337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847.

The product of its digits is 8064, while the sum is 31.

The square root of 81414337 is about 9022.9893605168. The cubic root of 81414337 is about 433.4113665521.

It can be divided in two parts, 814 and 14337, that added together give a palindrome (15151).

The spelling of 81414337 in words is "eighty-one million, four hundred fourteen thousand, three hundred thirty-seven".