81037014 has 16 divisors (see below), whose sum is σ = 170604480. Its totient is φ = 25590600.

The previous prime is 81036997. The next prime is 81037091. The reversal of 81037014 is 41073018.

It is a nialpdrome in base 14.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 355312 + ... + 355539.

It is an arithmetic number, because the mean of its divisors is an integer number (10662780).

Almost surely, 2^81037014 is an apocalyptic number.

81037014 is an abundant number, since it is smaller than the sum of its proper divisors (89567466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81037014 is a wasteful number, since it uses less digits than its factorization.

81037014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710875.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 81037014 is about 9002.0560984699. The cubic root of 81037014 is about 432.7407665197.

The spelling of 81037014 in words is "eighty-one million, thirty-seven thousand, fourteen".