1085736199 has 4 divisors (see below), whose sum is σ = 1086273864. Its totient is φ = 1085198536.

The previous prime is 1085736173. The next prime is 1085736257. The reversal of 1085736199 is 9916375801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9916375801 = 197 ⋅50336933.

It is a cyclic number.

It is not a de Polignac number, because 1085736199 - 2⁵ = 1085736167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085736599) 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, 265792 + ... + 269845.

It is an arithmetic number, because the mean of its divisors is an integer number (271568466).

Almost surely, 2^1085736199 is an apocalyptic number.

1085736199 is a deficient number, since it is larger than the sum of its proper divisors (537665).

1085736199 is an equidigital number, since it uses as much as digits as its factorization.

1085736199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537664.

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 1085736199 is about 32950.5113617376. The cubic root of 1085736199 is about 1027.7987990489.

The spelling of 1085736199 in words is "one billion, eighty-five million, seven hundred thirty-six thousand, one hundred ninety-nine".