1085752221 has 8 divisors (see below), whose sum is σ = 1465994880. Its totient is φ = 714672192.

The previous prime is 1085752147. The next prime is 1085752229. The reversal of 1085752221 is 1222575801.

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

It is not a de Polignac number, because 1085752221 - 2¹⁰ = 1085751197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085752229) 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, 2290380 + ... + 2290853.

It is an arithmetic number, because the mean of its divisors is an integer number (183249360).

Almost surely, 2^1085752221 is an apocalyptic number.

It is an amenable number.

1085752221 is a deficient number, since it is larger than the sum of its proper divisors (380242659).

1085752221 is an equidigital number, since it uses as much as digits as its factorization.

1085752221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4581315.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 1085752221 is about 32950.7544830160. The cubic root of 1085752221 is about 1027.8038547003.

The spelling of 1085752221 in words is "one billion, eighty-five million, seven hundred fifty-two thousand, two hundred twenty-one".