111012149 has 2 divisors, whose sum is σ = 111012150. Its totient is φ = 111012148.

The previous prime is 111012067. The next prime is 111012199. The reversal of 111012149 is 941210111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110460100 + 552049 = 10510^2 + 743^2 .

It is an emirp because it is prime and its reverse (941210111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111012149 - 2²⁰ = 109963573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111012149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506074 + 55506075.

It is an arithmetic number, because the mean of its divisors is an integer number (55506075).

Almost surely, 2^111012149 is an apocalyptic number.

It is an amenable number.

111012149 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012149 is an equidigital number, since it uses as much as digits as its factorization.

111012149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 111012149 is about 10536.2303031018. The cubic root of 111012149 is about 480.6070863119.

The spelling of 111012149 in words is "one hundred eleven million, twelve thousand, one hundred forty-nine".