1085399534 has 4 divisors (see below), whose sum is σ = 1628099304. Its totient is φ = 542699766.

The previous prime is 1085399521. The next prime is 1085399563. The reversal of 1085399534 is 4359935801.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271349882 + ... + 271349885.

It is an arithmetic number, because the mean of its divisors is an integer number (407024826).

Almost surely, 2^1085399534 is an apocalyptic number.

1085399534 is a deficient number, since it is larger than the sum of its proper divisors (542699770).

1085399534 is an equidigital number, since it uses as much as digits as its factorization.

1085399534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542699769.

The product of its (nonzero) digits is 583200, while the sum is 47.

The square root of 1085399534 is about 32945.4023195954. The cubic root of 1085399534 is about 1027.6925548083.

The spelling of 1085399534 in words is "one billion, eighty-five million, three hundred ninety-nine thousand, five hundred thirty-four".