111492487 has 2 divisors, whose sum is σ = 111492488. Its totient is φ = 111492486.

The previous prime is 111492439. The next prime is 111492497. The reversal of 111492487 is 784294111.

It is a strong prime.

It is an emirp because it is prime and its reverse (784294111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111492487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111492427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55746243 + 55746244.

It is an arithmetic number, because the mean of its divisors is an integer number (55746244).

Almost surely, 2^111492487 is an apocalyptic number.

111492487 is a deficient number, since it is larger than the sum of its proper divisors (1).

111492487 is an equidigital number, since it uses as much as digits as its factorization.

111492487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 37.

The square root of 111492487 is about 10559.0002841178. Note that the first 3 decimals coincide. The cubic root of 111492487 is about 481.2992678632.

The spelling of 111492487 in words is "one hundred eleven million, four hundred ninety-two thousand, four hundred eighty-seven".