111493549 has 2 divisors, whose sum is σ = 111493550. Its totient is φ = 111493548.

The previous prime is 111493523. The next prime is 111493573. The reversal of 111493549 is 945394111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83137924 + 28355625 = 9118^2 + 5325^2 .

It is a cyclic number.

It is not a de Polignac number, because 111493549 - 2⁵ = 111493517 is a prime.

It is a super-2 number, since 2×111493549² = 24861622937230802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111493579) 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, 55746774 + 55746775.

It is an arithmetic number, because the mean of its divisors is an integer number (55746775).

Almost surely, 2^111493549 is an apocalyptic number.

It is an amenable number.

111493549 is a deficient number, since it is larger than the sum of its proper divisors (1).

111493549 is an equidigital number, since it uses as much as digits as its factorization.

111493549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 37.

The square root of 111493549 is about 10559.0505728498. The cubic root of 111493549 is about 481.3007960326.

The spelling of 111493549 in words is "one hundred eleven million, four hundred ninety-three thousand, five hundred forty-nine".