981156068 has 6 divisors (see below), whose sum is σ = 1717023126. Its totient is φ = 490578032.

The previous prime is 981156041. The next prime is 981156073. The reversal of 981156068 is 860651189.

981156068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 812364004 + 168792064 = 28502^2 + 12992^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122644505 + ... + 122644512.

It is an arithmetic number, because the mean of its divisors is an integer number (286170521).

Almost surely, 2^981156068 is an apocalyptic number.

It is an amenable number.

981156068 is a deficient number, since it is larger than the sum of its proper divisors (735867058).

981156068 is a wasteful number, since it uses less digits than its factorization.

981156068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245289021 (or 245289019 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 981156068 is about 31323.4108615266. The cubic root of 981156068 is about 993.6788161608.

The spelling of 981156068 in words is "nine hundred eighty-one million, one hundred fifty-six thousand, sixty-eight".