1068120987 has 8 divisors (see below), whose sum is σ = 1424327760. Its totient is φ = 711997440.

The previous prime is 1068120983. The next prime is 1068120997. The reversal of 1068120987 is 7890218601.

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

It is not a de Polignac number, because 1068120987 - 2² = 1068120983 is a prime.

It is a super-2 number, since 2×1068120987² = 2281764885739708338, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1068120983) 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, 21339 + ... + 50907.

It is an arithmetic number, because the mean of its divisors is an integer number (178040970).

Almost surely, 2^1068120987 is an apocalyptic number.

1068120987 is a deficient number, since it is larger than the sum of its proper divisors (356206773).

1068120987 is a wasteful number, since it uses less digits than its factorization.

1068120987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41613.

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 1068120987 is about 32682.1202953542. The cubic root of 1068120987 is about 1022.2100570574.

The spelling of 1068120987 in words is "one billion, sixty-eight million, one hundred twenty thousand, nine hundred eighty-seven".