81465346 has 8 divisors (see below), whose sum is σ = 124503804. Its totient is φ = 39964080.

The previous prime is 81465341. The next prime is 81465359. The reversal of 81465346 is 64356418.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66341025 + 15124321 = 8145^2 + 3889^2 .

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 (81465341) 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, 384165 + ... + 384376.

Almost surely, 2^81465346 is an apocalyptic number.

81465346 is a deficient number, since it is larger than the sum of its proper divisors (43038458).

81465346 is a wasteful number, since it uses less digits than its factorization.

81465346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768596.

The product of its digits is 69120, while the sum is 37.

The square root of 81465346 is about 9025.8155310199. The cubic root of 81465346 is about 433.5018635730.

The spelling of 81465346 in words is "eighty-one million, four hundred sixty-five thousand, three hundred forty-six".