111404141 has 4 divisors (see below), whose sum is σ = 112814400. Its totient is φ = 109993884.

The previous prime is 111404129. The next prime is 111404159. The reversal of 111404141 is 141404111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141404111 = 239 ⋅591649.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111404141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111404941) 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, 705011 + ... + 705168.

It is an arithmetic number, because the mean of its divisors is an integer number (28203600).

Almost surely, 2^111404141 is an apocalyptic number.

It is an amenable number.

111404141 is a deficient number, since it is larger than the sum of its proper divisors (1410259).

111404141 is an equidigital number, since it uses as much as digits as its factorization.

111404141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410258.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 111404141 is about 10554.8160097654. The cubic root of 111404141 is about 481.1721080210.

Adding to 111404141 its reverse (141404111), we get a palindrome (252808252).

The spelling of 111404141 in words is "one hundred eleven million, four hundred four thousand, one hundred forty-one".