1086959521 has 4 divisors (see below), whose sum is σ = 1088057344. Its totient is φ = 1085861700.

The previous prime is 1086959509. The next prime is 1086959551. The reversal of 1086959521 is 1259596801.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1259596801 = 4621 ⋅272581.

It is a cyclic number.

It is not a de Polignac number, because 1086959521 - 2¹³ = 1086951329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1086959501) 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, 547425 + ... + 549406.

It is an arithmetic number, because the mean of its divisors is an integer number (272014336).

Almost surely, 2^1086959521 is an apocalyptic number.

It is an amenable number.

1086959521 is a deficient number, since it is larger than the sum of its proper divisors (1097823).

1086959521 is an equidigital number, since it uses as much as digits as its factorization.

1086959521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097822.

The product of its (nonzero) digits is 194400, while the sum is 46.

The square root of 1086959521 is about 32969.0691558012. The cubic root of 1086959521 is about 1028.1846683970.

The spelling of 1086959521 in words is "one billion, eighty-six million, nine hundred fifty-nine thousand, five hundred twenty-one".