1081823947 has 8 divisors (see below), whose sum is σ = 1104337152. Its totient is φ = 1059513000.

The previous prime is 1081823933. The next prime is 1081823987. The reversal of 1081823947 is 7493281801.

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

It is a cyclic number.

It is not a de Polignac number, because 1081823947 - 2²³ = 1073435339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081823927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39733 + ... + 61174.

It is an arithmetic number, because the mean of its divisors is an integer number (138042144).

Almost surely, 2^1081823947 is an apocalyptic number.

1081823947 is a deficient number, since it is larger than the sum of its proper divisors (22513205).

1081823947 is a wasteful number, since it uses less digits than its factorization.

1081823947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101129.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 1081823947 is about 32891.0922135462. The cubic root of 1081823947 is about 1026.5628182590.

The spelling of 1081823947 in words is "one billion, eighty-one million, eight hundred twenty-three thousand, nine hundred forty-seven".