81046354 has 8 divisors (see below), whose sum is σ = 124855308. Its totient is φ = 39427920.

The previous prime is 81046351. The next prime is 81046363. The reversal of 81046354 is 45364018.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78234025 + 2812329 = 8845^2 + 1677^2 .

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

It is a super-2 number, since 2×81046354² = 13137022993386632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (81046351) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 547537 + ... + 547684.

Almost surely, 2^81046354 is an apocalyptic number.

81046354 is a deficient number, since it is larger than the sum of its proper divisors (43808954).

81046354 is a wasteful number, since it uses less digits than its factorization.

81046354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095260.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 81046354 is about 9002.5748538960. The cubic root of 81046354 is about 432.7573912006.

The spelling of 81046354 in words is "eighty-one million, forty-six thousand, three hundred fifty-four".