111497389 has 2 divisors, whose sum is σ = 111497390. Its totient is φ = 111497388.

The previous prime is 111497369. The next prime is 111497401. The reversal of 111497389 is 983794111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55875625 + 55621764 = 7475^2 + 7458^2 .

It is a cyclic number.

It is not a de Polignac number, because 111497389 - 2⁵ = 111497357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111497369) 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 as a sum of consecutive naturals, namely, 55748694 + 55748695.

It is an arithmetic number, because the mean of its divisors is an integer number (55748695).

Almost surely, 2^111497389 is an apocalyptic number.

It is an amenable number.

111497389 is a deficient number, since it is larger than the sum of its proper divisors (1).

111497389 is an equidigital number, since it uses as much as digits as its factorization.

111497389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 43.

The square root of 111497389 is about 10559.2324058144. The cubic root of 111497389 is about 481.3063215356.

The spelling of 111497389 in words is "one hundred eleven million, four hundred ninety-seven thousand, three hundred eighty-nine".