111144461 has 8 divisors (see below), whose sum is σ = 112551648. Its totient is φ = 109746000.

The previous prime is 111144457. The next prime is 111144469. The reversal of 111144461 is 164441111.

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 111144461 - 2² = 111144457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111144469) 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 7 ways as a sum of consecutive naturals, for example, 25631 + ... + 29651.

It is an arithmetic number, because the mean of its divisors is an integer number (14068956).

Almost surely, 2^111144461 is an apocalyptic number.

It is an amenable number.

111144461 is a deficient number, since it is larger than the sum of its proper divisors (1407187).

111144461 is a wasteful number, since it uses less digits than its factorization.

111144461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363.

The product of its digits is 384, while the sum is 23.

The square root of 111144461 is about 10542.5073393382. The cubic root of 111144461 is about 480.7979508206.

Adding to 111144461 its reverse (164441111), we get a palindrome (275585572).

The spelling of 111144461 in words is "one hundred eleven million, one hundred forty-four thousand, four hundred sixty-one".