111454143 has 16 divisors (see below), whose sum is σ = 151406976. Its totient is φ = 72914400.

The previous prime is 111454117. The next prime is 111454169. The reversal of 111454143 is 341454111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111454117) and next prime (111454169).

It is not a de Polignac number, because 111454143 - 2⁵ = 111454111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111454183) 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 15 ways as a sum of consecutive naturals, for example, 37668 + ... + 40518.

It is an arithmetic number, because the mean of its divisors is an integer number (9462936).

Almost surely, 2^111454143 is an apocalyptic number.

111454143 is a deficient number, since it is larger than the sum of its proper divisors (39952833).

111454143 is a wasteful number, since it uses less digits than its factorization.

111454143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094.

The product of its digits is 960, while the sum is 24.

The square root of 111454143 is about 10557.1844257832. The cubic root of 111454143 is about 481.2440861026.

The spelling of 111454143 in words is "one hundred eleven million, four hundred fifty-four thousand, one hundred forty-three".