111241579 has 2 divisors, whose sum is σ = 111241580. Its totient is φ = 111241578.

The previous prime is 111241517. The next prime is 111241589. The reversal of 111241579 is 975142111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111241579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111241579.

It is not a weakly prime, because it can be changed into another prime (111241589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55620789 + 55620790.

It is an arithmetic number, because the mean of its divisors is an integer number (55620790).

Almost surely, 2^111241579 is an apocalyptic number.

111241579 is a deficient number, since it is larger than the sum of its proper divisors (1).

111241579 is an equidigital number, since it uses as much as digits as its factorization.

111241579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 31.

The square root of 111241579 is about 10547.1123536255. The cubic root of 111241579 is about 480.9379504245.

The spelling of 111241579 in words is "one hundred eleven million, two hundred forty-one thousand, five hundred seventy-nine".