111137749 has 2 divisors, whose sum is σ = 111137750. Its totient is φ = 111137748.

The previous prime is 111137737. The next prime is 111137777. The reversal of 111137749 is 947731111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64802500 + 46335249 = 8050^2 + 6807^2 .

It is a cyclic number.

It is not a de Polignac number, because 111137749 - 2¹⁷ = 111006677 is a prime.

It is equal to p_6364636 and since 111137749 and 6364636 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111137729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55568874 + 55568875.

It is an arithmetic number, because the mean of its divisors is an integer number (55568875).

Almost surely, 2^111137749 is an apocalyptic number.

It is an amenable number.

111137749 is a deficient number, since it is larger than the sum of its proper divisors (1).

111137749 is an equidigital number, since it uses as much as digits as its factorization.

111137749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 34.

The square root of 111137749 is about 10542.1890041869. The cubic root of 111137749 is about 480.7882721832.

The spelling of 111137749 in words is "one hundred eleven million, one hundred thirty-seven thousand, seven hundred forty-nine".