111145739 has 2 divisors, whose sum is σ = 111145740. Its totient is φ = 111145738.

The previous prime is 111145691. The next prime is 111145789. The reversal of 111145739 is 937541111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111145739 - 2⁸ = 111145483 is a prime.

It is a super-2 number, since 2×111145739² = 24706750595712242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111145789) 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 as a sum of consecutive naturals, namely, 55572869 + 55572870.

It is an arithmetic number, because the mean of its divisors is an integer number (55572870).

Almost surely, 2^111145739 is an apocalyptic number.

111145739 is a deficient number, since it is larger than the sum of its proper divisors (1).

111145739 is an equidigital number, since it uses as much as digits as its factorization.

111145739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 32.

The square root of 111145739 is about 10542.5679509311. The cubic root of 111145739 is about 480.7997936397.

The spelling of 111145739 in words is "one hundred eleven million, one hundred forty-five thousand, seven hundred thirty-nine".