81203714 has 8 divisors (see below), whose sum is σ = 123273360. Its totient is φ = 40112596.

The previous prime is 81203711. The next prime is 81203729. The reversal of 81203714 is 41730218.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (81203711) 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, 244424 + ... + 244755.

It is an arithmetic number, because the mean of its divisors is an integer number (15409170).

Almost surely, 2^81203714 is an apocalyptic number.

81203714 is a deficient number, since it is larger than the sum of its proper divisors (42069646).

81203714 is a wasteful number, since it uses less digits than its factorization.

81203714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489264.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 81203714 is about 9011.3103375702. The cubic root of 81203714 is about 433.0372914206.

The spelling of 81203714 in words is "eighty-one million, two hundred three thousand, seven hundred fourteen".