1086925209 has 32 divisors (see below), whose sum is σ = 1588346496. Its totient is φ = 658344960.

The previous prime is 1086925207. The next prime is 1086925253. The reversal of 1086925209 is 9025296801.

It is not a de Polignac number, because 1086925209 - 2¹ = 1086925207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1086925207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244999 + ... + 249395.

It is an arithmetic number, because the mean of its divisors is an integer number (49635828).

Almost surely, 2^1086925209 is an apocalyptic number.

It is an amenable number.

1086925209 is a deficient number, since it is larger than the sum of its proper divisors (501421287).

1086925209 is a wasteful number, since it uses less digits than its factorization.

1086925209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1086925209 is about 32968.5487851680. The cubic root of 1086925209 is about 1028.1738493975.

The spelling of 1086925209 in words is "one billion, eighty-six million, nine hundred twenty-five thousand, two hundred nine".