81246614 has 8 divisors (see below), whose sum is σ = 122162040. Its totient is φ = 40525936.

The previous prime is 81246611. The next prime is 81246619. The reversal of 81246614 is 41664218.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81246611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47639 + ... + 49314.

It is an arithmetic number, because the mean of its divisors is an integer number (15270255).

Almost surely, 2^81246614 is an apocalyptic number.

81246614 is a deficient number, since it is larger than the sum of its proper divisors (40915426).

81246614 is a wasteful number, since it uses less digits than its factorization.

81246614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97374.

The product of its digits is 9216, while the sum is 32.

The square root of 81246614 is about 9013.6903652167. The cubic root of 81246614 is about 433.1135360010.

The spelling of 81246614 in words is "eighty-one million, two hundred forty-six thousand, six hundred fourteen".