81737114 has 8 divisors (see below), whose sum is σ = 122715648. Its totient is φ = 40831900.

The previous prime is 81737063. The next prime is 81737129. The reversal of 81737114 is 41173718.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15452 + ... + 20055.

It is an arithmetic number, because the mean of its divisors is an integer number (15339456).

Almost surely, 2^81737114 is an apocalyptic number.

81737114 is a deficient number, since it is larger than the sum of its proper divisors (40978534).

81737114 is a wasteful number, since it uses less digits than its factorization.

81737114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36660.

The product of its digits is 4704, while the sum is 32.

The square root of 81737114 is about 9040.8580345009. The cubic root of 81737114 is about 433.9833818946.

The spelling of 81737114 in words is "eighty-one million, seven hundred thirty-seven thousand, one hundred fourteen".