1085213225 has 12 divisors (see below), whose sum is σ = 1351599504. Its totient is φ = 864341520.

The previous prime is 1085213201. The next prime is 1085213237. The reversal of 1085213225 is 5223125801.

It is not a de Polignac number, because 1085213225 - 2⁶ = 1085213161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89939 + ... + 101288.

It is an arithmetic number, because the mean of its divisors is an integer number (112633292).

Almost surely, 2^1085213225 is an apocalyptic number.

It is an amenable number.

1085213225 is a deficient number, since it is larger than the sum of its proper divisors (266386279).

1085213225 is a wasteful number, since it uses less digits than its factorization.

1085213225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191464 (or 191459 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1085213225 is about 32942.5746565140. The cubic root of 1085213225 is about 1027.6337502475.

The spelling of 1085213225 in words is "one billion, eighty-five million, two hundred thirteen thousand, two hundred twenty-five".