1086122869 has 8 divisors (see below), whose sum is σ = 1170068760. Its totient is φ = 1002233856.

The previous prime is 1086122861. The next prime is 1086122879. The reversal of 1086122869 is 9682216801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1276900 + 1084845969 = 1130^2 + 32937^2 .

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

It is not a de Polignac number, because 1086122869 - 2³ = 1086122861 is a prime.

It is a super-2 number, since 2×1086122869² = 2359325773129582322, 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 (1086122861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30729 + ... + 55825.

It is an arithmetic number, because the mean of its divisors is an integer number (146258595).

Almost surely, 2^1086122869 is an apocalyptic number.

It is an amenable number.

1086122869 is a deficient number, since it is larger than the sum of its proper divisors (83945891).

1086122869 is a wasteful number, since it uses less digits than its factorization.

1086122869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28439.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 1086122869 is about 32956.3782749258. The cubic root of 1086122869 is about 1027.9207966983.

The spelling of 1086122869 in words is "one billion, eighty-six million, one hundred twenty-two thousand, eight hundred sixty-nine".