1081862722 has 4 divisors (see below), whose sum is σ = 1622794086. Its totient is φ = 540931360.

The previous prime is 1081862699. The next prime is 1081862741. The reversal of 1081862722 is 2272681801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2272681801 = 13 ⋅174821677.

It can be written as a sum of positive squares in only one way, i.e., 941937481 + 139925241 = 30691^2 + 11829^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270465679 + ... + 270465682.

Almost surely, 2^1081862722 is an apocalyptic number.

1081862722 is a deficient number, since it is larger than the sum of its proper divisors (540931364).

1081862722 is an equidigital number, since it uses as much as digits as its factorization.

1081862722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540931363.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 1081862722 is about 32891.6816535731. The cubic root of 1081862722 is about 1026.5750828848.

The spelling of 1081862722 in words is "one billion, eighty-one million, eight hundred sixty-two thousand, seven hundred twenty-two".