111345749 has 2 divisors, whose sum is σ = 111345750. Its totient is φ = 111345748.

The previous prime is 111345743. The next prime is 111345797. The reversal of 111345749 is 947543111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106977649 + 4368100 = 10343^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 111345749 - 2²⁴ = 94568533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111345743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55672874 + 55672875.

It is an arithmetic number, because the mean of its divisors is an integer number (55672875).

Almost surely, 2^111345749 is an apocalyptic number.

It is an amenable number.

111345749 is a deficient number, since it is larger than the sum of its proper divisors (1).

111345749 is an equidigital number, since it uses as much as digits as its factorization.

111345749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 111345749 is about 10552.0495165631. The cubic root of 111345749 is about 481.0880252337.

The spelling of 111345749 in words is "one hundred eleven million, three hundred forty-five thousand, seven hundred forty-nine".