81227514 has 8 divisors (see below), whose sum is σ = 162455040. Its totient is φ = 27075836.

The previous prime is 81227507. The next prime is 81227537. The reversal of 81227514 is 41572218.

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

81227514 is an admirable number.

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, 6768954 + ... + 6768965.

It is an arithmetic number, because the mean of its divisors is an integer number (20306880).

Almost surely, 2^81227514 is an apocalyptic number.

81227514 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

81227514 is a wasteful number, since it uses less digits than its factorization.

81227514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13537924.

The product of its digits is 4480, while the sum is 30.

The square root of 81227514 is about 9012.6308034891. The cubic root of 81227514 is about 433.0795935942.

The spelling of 81227514 in words is "eighty-one million, two hundred twenty-seven thousand, five hundred fourteen".