81414354 has 32 divisors (see below), whose sum is σ = 195886080. Its totient is φ = 22036752.

The previous prime is 81414349. The next prime is 81414407. The reversal of 81414354 is 45341418.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50214 + ... + 51809.

It is an arithmetic number, because the mean of its divisors is an integer number (6121440).

Almost surely, 2^81414354 is an apocalyptic number.

81414354 is an abundant number, since it is smaller than the sum of its proper divisors (114471726).

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

81414354 is a wasteful number, since it uses less digits than its factorization.

81414354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102054.

The product of its digits is 7680, while the sum is 30.

The square root of 81414354 is about 9022.9903025549. The cubic root of 81414354 is about 433.4113967187.

The spelling of 81414354 in words is "eighty-one million, four hundred fourteen thousand, three hundred fifty-four".