1111125479 has 2 divisors, whose sum is σ = 1111125480. Its totient is φ = 1111125478.

The previous prime is 1111125473. The next prime is 1111125493. The reversal of 1111125479 is 9745211111.

It is a weak prime.

It is an emirp because it is prime and its reverse (9745211111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111125479 - 2¹² = 1111121383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111125473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555562739 + 555562740.

It is an arithmetic number, because the mean of its divisors is an integer number (555562740).

Almost surely, 2^1111125479 is an apocalyptic number.

1111125479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111125479 is an equidigital number, since it uses as much as digits as its factorization.

1111125479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 32.

The square root of 1111125479 is about 33333.5488509699. The cubic root of 1111125479 is about 1035.7486330692.

The spelling of 1111125479 in words is "one billion, one hundred eleven million, one hundred twenty-five thousand, four hundred seventy-nine".