1185685923 has 8 divisors (see below), whose sum is σ = 1631911936. Its totient is φ = 764958600.

The previous prime is 1185685901. The next prime is 1185685933. The reversal of 1185685923 is 3295865811.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1185685923 - 2⁹ = 1185685411 is a prime.

It is a super-2 number, since 2×1185685923² = 2811702216000723858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1185685933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6374563 + ... + 6374748.

It is an arithmetic number, because the mean of its divisors is an integer number (203988992).

Almost surely, 2^1185685923 is an apocalyptic number.

1185685923 is a deficient number, since it is larger than the sum of its proper divisors (446226013).

1185685923 is a wasteful number, since it uses less digits than its factorization.

1185685923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12749345.

The product of its digits is 518400, while the sum is 48.

The square root of 1185685923 is about 34433.7904245234. The cubic root of 1185685923 is about 1058.4163854444.

It can be divided in two parts, 11856 and 85923, that added together give a palindrome (97779).

The spelling of 1185685923 in words is "one billion, one hundred eighty-five million, six hundred eighty-five thousand, nine hundred twenty-three".