81602314 has 8 divisors (see below), whose sum is σ = 122687460. Its totient is φ = 40706496.

The previous prime is 81602303. The next prime is 81602333. The reversal of 81602314 is 41320618.

It can be written as a sum of positive squares in 2 ways, for example, as 81595089 + 7225 = 9033^2 + 85^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46249 + ... + 47980.

Almost surely, 2^81602314 is an apocalyptic number.

81602314 is a deficient number, since it is larger than the sum of its proper divisors (41085146).

81602314 is a wasteful number, since it uses less digits than its factorization.

81602314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94664.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 81602314 is about 9033.3999136538. The cubic root of 81602314 is about 433.7446769937.

The spelling of 81602314 in words is "eighty-one million, six hundred two thousand, three hundred fourteen".