981161822 has 8 divisors (see below), whose sum is σ = 1474766256. Its totient is φ = 489573072.

The previous prime is 981161821. The next prime is 981161891. The reversal of 981161822 is 228161189.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981161821) 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, 502703 + ... + 504650.

It is an arithmetic number, because the mean of its divisors is an integer number (184345782).

Almost surely, 2^981161822 is an apocalyptic number.

981161822 is a deficient number, since it is larger than the sum of its proper divisors (493604434).

981161822 is a wasteful number, since it uses less digits than its factorization.

981161822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007842.

The product of its digits is 13824, while the sum is 38.

The square root of 981161822 is about 31323.5027096268. The cubic root of 981161822 is about 993.6807586370.

The spelling of 981161822 in words is "nine hundred eighty-one million, one hundred sixty-one thousand, eight hundred twenty-two".