81495614 has 8 divisors (see below), whose sum is σ = 122289480. Its totient is φ = 40732456.

The previous prime is 81495613. The next prime is 81495619. The reversal of 81495614 is 41659418.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81495611) 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, 857 + ... + 12795.

It is an arithmetic number, because the mean of its divisors is an integer number (15286185).

Almost surely, 2^81495614 is an apocalyptic number.

81495614 is a deficient number, since it is larger than the sum of its proper divisors (40793866).

81495614 is a wasteful number, since it uses less digits than its factorization.

81495614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15354.

The product of its digits is 34560, while the sum is 38.

The square root of 81495614 is about 9027.4921212926. The cubic root of 81495614 is about 433.5555453340. Note that the first 4 decimals are identical.

The spelling of 81495614 in words is "eighty-one million, four hundred ninety-five thousand, six hundred fourteen".