1085919423 has 4 divisors (see below), whose sum is σ = 1447892568. Its totient is φ = 723946280.

The previous prime is 1085919389. The next prime is 1085919437. The reversal of 1085919423 is 3249195801.

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

It is a cyclic number.

It is not a de Polignac number, because 1085919423 - 2⁸ = 1085919167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085919323) 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, 180986568 + ... + 180986573.

It is an arithmetic number, because the mean of its divisors is an integer number (361973142).

Almost surely, 2^1085919423 is an apocalyptic number.

1085919423 is a deficient number, since it is larger than the sum of its proper divisors (361973145).

1085919423 is an equidigital number, since it uses as much as digits as its factorization.

1085919423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361973144.

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

The square root of 1085919423 is about 32953.2915351411. The cubic root of 1085919423 is about 1027.8566113779.

The spelling of 1085919423 in words is "one billion, eighty-five million, nine hundred nineteen thousand, four hundred twenty-three".