111432449 has 2 divisors, whose sum is σ = 111432450. Its totient is φ = 111432448.

The previous prime is 111432439. The next prime is 111432463. The reversal of 111432449 is 944234111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110986225 + 446224 = 10535^2 + 668^2 .

It is a cyclic number.

It is not a de Polignac number, because 111432449 - 2⁸ = 111432193 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (111432439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55716224 + 55716225.

It is an arithmetic number, because the mean of its divisors is an integer number (55716225).

Almost surely, 2^111432449 is an apocalyptic number.

It is an amenable number.

111432449 is a deficient number, since it is larger than the sum of its proper divisors (1).

111432449 is an equidigital number, since it uses as much as digits as its factorization.

111432449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 111432449 is about 10556.1569238052. The cubic root of 111432449 is about 481.2128601462.

The spelling of 111432449 in words is "one hundred eleven million, four hundred thirty-two thousand, four hundred forty-nine".