111785964 has 12 divisors (see below), whose sum is σ = 260833944. Its totient is φ = 37261984.

The previous prime is 111785963. The next prime is 111786007. The reversal of 111785964 is 469587111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×111785964² = 24992203494818592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111785963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4657737 + ... + 4657760.

It is an arithmetic number, because the mean of its divisors is an integer number (21736162).

Almost surely, 2^111785964 is an apocalyptic number.

It is an amenable number.

111785964 is an abundant number, since it is smaller than the sum of its proper divisors (149047980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111785964 is a wasteful number, since it uses less digits than its factorization.

111785964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9315504 (or 9315502 counting only the distinct ones).

The product of its digits is 60480, while the sum is 42.

The square root of 111785964 is about 10572.8881579254. Note that the first 3 decimals coincide. The cubic root of 111785964 is about 481.7211991647.

The spelling of 111785964 in words is "one hundred eleven million, seven hundred eighty-five thousand, nine hundred sixty-four".