1120862989 has 8 divisors (see below), whose sum is σ = 1187976888. Its totient is φ = 1053880320.

The previous prime is 1120862987. The next prime is 1120862993. The reversal of 1120862989 is 9892680211.

It can be written as a sum of positive squares in 4 ways, for example, as 455480964 + 665382025 = 21342^2 + 25795^2 .

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

It is not a de Polignac number, because 1120862989 - 2¹ = 1120862987 is a prime.

It is a super-2 number, since 2×1120862989² = 2512667680220028242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120862987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14932 + ... + 49645.

It is an arithmetic number, because the mean of its divisors is an integer number (148497111).

Almost surely, 2^1120862989 is an apocalyptic number.

It is an amenable number.

1120862989 is a deficient number, since it is larger than the sum of its proper divisors (67113899).

1120862989 is a wasteful number, since it uses less digits than its factorization.

1120862989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65615.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 1120862989 is about 33479.2919429309. The cubic root of 1120862989 is about 1038.7654819690.

The spelling of 1120862989 in words is "one billion, one hundred twenty million, eight hundred sixty-two thousand, nine hundred eighty-nine".