81227334 has 16 divisors (see below), whose sum is σ = 163307520. Its totient is φ = 26933640.

The previous prime is 81227303. The next prime is 81227351. The reversal of 81227334 is 43372218.

It is a congruent number.

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, 34294 + ... + 36585.

It is an arithmetic number, because the mean of its divisors is an integer number (10206720).

Almost surely, 2^81227334 is an apocalyptic number.

81227334 is an abundant number, since it is smaller than the sum of its proper divisors (82080186).

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

81227334 is a wasteful number, since it uses less digits than its factorization.

81227334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71075.

The product of its digits is 8064, while the sum is 30.

The square root of 81227334 is about 9012.6208174981. The cubic root of 81227334 is about 433.0792736928.

The spelling of 81227334 in words is "eighty-one million, two hundred twenty-seven thousand, three hundred thirty-four".