111961442 has 8 divisors (see below), whose sum is σ = 169150800. Its totient is φ = 55577844.

The previous prime is 111961441. The next prime is 111961459. The reversal of 111961442 is 244169111.

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

It is not an unprimeable number, because it can be changed into a prime (111961441) 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 3 ways as a sum of consecutive naturals, for example, 201092 + ... + 201647.

It is an arithmetic number, because the mean of its divisors is an integer number (21143850).

Almost surely, 2^111961442 is an apocalyptic number.

111961442 is a deficient number, since it is larger than the sum of its proper divisors (57189358).

111961442 is a wasteful number, since it uses less digits than its factorization.

111961442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402880.

The product of its digits is 1728, while the sum is 29.

The square root of 111961442 is about 10581.1833931749. The cubic root of 111961442 is about 481.9731308519.

The spelling of 111961442 in words is "one hundred eleven million, nine hundred sixty-one thousand, four hundred forty-two".