111961443 has 8 divisors (see below), whose sum is σ = 162853056. Its totient is φ = 67855400.

The previous prime is 111961441. The next prime is 111961459. The reversal of 111961443 is 344169111.

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

It is a cyclic number.

It is not a de Polignac number, because 111961443 - 2¹ = 111961441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111961443.

It is not an unprimeable number, because it can be changed into a prime (111961441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1696353 + ... + 1696418.

It is an arithmetic number, because the mean of its divisors is an integer number (20356632).

Almost surely, 2^111961443 is an apocalyptic number.

111961443 is a deficient number, since it is larger than the sum of its proper divisors (50891613).

111961443 is a wasteful number, since it uses less digits than its factorization.

111961443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392785.

The product of its digits is 2592, while the sum is 30.

The square root of 111961443 is about 10581.1834404286. The cubic root of 111961443 is about 481.9731322868.

The spelling of 111961443 in words is "one hundred eleven million, nine hundred sixty-one thousand, four hundred forty-three".