81414383 has 8 divisors (see below), whose sum is σ = 82445376. Its totient is φ = 80388000.

The previous prime is 81414349. The next prime is 81414407. The reversal of 81414383 is 38341418.

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

It is a cyclic number.

It is not a de Polignac number, because 81414383 - 2¹⁰ = 81413359 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81414083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45893 + ... + 47633.

It is an arithmetic number, because the mean of its divisors is an integer number (10305672).

Almost surely, 2^81414383 is an apocalyptic number.

81414383 is a deficient number, since it is larger than the sum of its proper divisors (1030993).

81414383 is a wasteful number, since it uses less digits than its factorization.

81414383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305.

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

The square root of 81414383 is about 9022.9919095608. The cubic root of 81414383 is about 433.4114481794.

The spelling of 81414383 in words is "eighty-one million, four hundred fourteen thousand, three hundred eighty-three".