1086558121 has 4 divisors (see below), whose sum is σ = 1185336144. Its totient is φ = 987780100.

The previous prime is 1086558119. The next prime is 1086558131. The reversal of 1086558121 is 1218556801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1086558121 - 2¹ = 1086558119 is a prime.

It is a super-2 number, since 2×1086558121² = 2361217100622101282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1086558131) 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, 49388995 + ... + 49389016.

It is an arithmetic number, because the mean of its divisors is an integer number (296334036).

Almost surely, 2^1086558121 is an apocalyptic number.

1086558121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1086558121 is a deficient number, since it is larger than the sum of its proper divisors (98778023).

1086558121 is an equidigital number, since it uses as much as digits as its factorization.

1086558121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98778022.

The product of its (nonzero) digits is 19200, while the sum is 37.

The square root of 1086558121 is about 32962.9810696788. The cubic root of 1086558121 is about 1028.0580877435.

It can be divided in two parts, 10865 and 58121, that added together give a palindrome (68986).

The spelling of 1086558121 in words is "one billion, eighty-six million, five hundred fifty-eight thousand, one hundred twenty-one".