1081722983 has 4 divisors (see below), whose sum is σ = 1180061448. Its totient is φ = 983384520.

The previous prime is 1081722947. The next prime is 1081722989. The reversal of 1081722983 is 3892271801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1081722983 - 2⁶ = 1081722919 is a prime.

It is a super-2 number, since 2×1081722983² = 2340249223900836578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1081722983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081722989) 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, 49169216 + ... + 49169237.

It is an arithmetic number, because the mean of its divisors is an integer number (295015362).

Almost surely, 2^1081722983 is an apocalyptic number.

1081722983 is a deficient number, since it is larger than the sum of its proper divisors (98338465).

1081722983 is an equidigital number, since it uses as much as digits as its factorization.

1081722983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98338464.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1081722983 is about 32889.5573548809. The cubic root of 1081722983 is about 1026.5308817278.

The spelling of 1081722983 in words is "one billion, eighty-one million, seven hundred twenty-two thousand, nine hundred eighty-three".