81475114 has 8 divisors (see below), whose sum is σ = 139671648. Its totient is φ = 34917900.

The previous prime is 81475109. The next prime is 81475117. The reversal of 81475114 is 41157418.

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

It is not an unprimeable number, because it can be changed into a prime (81475117) 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, 2909812 + ... + 2909839.

It is an arithmetic number, because the mean of its divisors is an integer number (17458956).

Almost surely, 2^81475114 is an apocalyptic number.

81475114 is a deficient number, since it is larger than the sum of its proper divisors (58196534).

81475114 is a wasteful number, since it uses less digits than its factorization.

81475114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5819660.

The product of its digits is 4480, while the sum is 31.

The square root of 81475114 is about 9026.3566293383. The cubic root of 81475114 is about 433.5191890460.

The spelling of 81475114 in words is "eighty-one million, four hundred seventy-five thousand, one hundred fourteen".