1085772203 has 4 divisors (see below), whose sum is σ = 1086283848. Its totient is φ = 1085260560.

The previous prime is 1085772199. The next prime is 1085772211. The reversal of 1085772203 is 3022775801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1085772203 - 2² = 1085772199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085772283) 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, 252626 + ... + 256887.

It is an arithmetic number, because the mean of its divisors is an integer number (271570962).

Almost surely, 2^1085772203 is an apocalyptic number.

1085772203 is a deficient number, since it is larger than the sum of its proper divisors (511645).

1085772203 is an equidigital number, since it uses as much as digits as its factorization.

1085772203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511644.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1085772203 is about 32951.0576916736. The cubic root of 1085772203 is about 1027.8101598377.

The spelling of 1085772203 in words is "one billion, eighty-five million, seven hundred seventy-two thousand, two hundred three".