111274819 has 2 divisors, whose sum is σ = 111274820. Its totient is φ = 111274818.

The previous prime is 111274789. The next prime is 111274853. The reversal of 111274819 is 918472111.

It is an a-pointer prime, because the next prime (111274853) can be obtained adding 111274819 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111274819 - 2⁹ = 111274307 is a prime.

It is a super-2 number, since 2×111274819² = 24764170686965522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111274019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55637409 + 55637410.

It is an arithmetic number, because the mean of its divisors is an integer number (55637410).

Almost surely, 2^111274819 is an apocalyptic number.

111274819 is a deficient number, since it is larger than the sum of its proper divisors (1).

111274819 is an equidigital number, since it uses as much as digits as its factorization.

111274819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 34.

The square root of 111274819 is about 10548.6880226879. The cubic root of 111274819 is about 480.9858485383.

The spelling of 111274819 in words is "one hundred eleven million, two hundred seventy-four thousand, eight hundred nineteen".