1085251199 has 2 divisors, whose sum is σ = 1085251200. Its totient is φ = 1085251198.

The previous prime is 1085251187. The next prime is 1085251247. The reversal of 1085251199 is 9911525801.

It is a weak prime.

It is an emirp because it is prime and its reverse (9911525801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085251199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085251109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542625599 + 542625600.

It is an arithmetic number, because the mean of its divisors is an integer number (542625600).

Almost surely, 2^1085251199 is an apocalyptic number.

1085251199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085251199 is an equidigital number, since it uses as much as digits as its factorization.

1085251199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 41.

The square root of 1085251199 is about 32943.1510180796. The cubic root of 1085251199 is about 1027.6457364969.

The spelling of 1085251199 in words is "one billion, eighty-five million, two hundred fifty-one thousand, one hundred ninety-nine".