111144151 has 2 divisors, whose sum is σ = 111144152. Its totient is φ = 111144150.

The previous prime is 111144101. The next prime is 111144157. The reversal of 111144151 is 151441111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111144151 - 2⁹ = 111143639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111144157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55572075 + 55572076.

It is an arithmetic number, because the mean of its divisors is an integer number (55572076).

Almost surely, 2^111144151 is an apocalyptic number.

111144151 is a deficient number, since it is larger than the sum of its proper divisors (1).

111144151 is an equidigital number, since it uses as much as digits as its factorization.

111144151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80, while the sum is 19.

The square root of 111144151 is about 10542.4926369431. The cubic root of 111144151 is about 480.7975038122.

Adding to 111144151 its reverse (151441111), we get a palindrome (262585262).

The spelling of 111144151 in words is "one hundred eleven million, one hundred forty-four thousand, one hundred fifty-one".