1085191623 has 12 divisors (see below), whose sum is σ = 1582718800. Its totient is φ = 716436576.

The previous prime is 1085191607. The next prime is 1085191633. The reversal of 1085191623 is 3261915801.

1085191623 is a `hidden beast` number, since 10 + 8 + 5 + 19 + 1 + 623 = 666.

1085191623 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1085191623 - 2⁴ = 1085191607 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 (1085191603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584398 + ... + 586251.

Almost surely, 2^1085191623 is an apocalyptic number.

1085191623 is a deficient number, since it is larger than the sum of its proper divisors (497527177).

1085191623 is a wasteful number, since it uses less digits than its factorization.

1085191623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170758 (or 1170755 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1085191623 is about 32942.2467812989. The cubic root of 1085191623 is about 1027.6269315901.

The spelling of 1085191623 in words is "one billion, eighty-five million, one hundred ninety-one thousand, six hundred twenty-three".