111242277 has 6 divisors (see below), whose sum is σ = 160683302. Its totient is φ = 74161512.

The previous prime is 111242249. The next prime is 111242281. The reversal of 111242277 is 772242111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 80838081 + 30404196 = 8991^2 + 5514^2 .

It is not a de Polignac number, because 111242277 - 2⁶ = 111242213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111242277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111242077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6180118 + ... + 6180135.

Almost surely, 2^111242277 is an apocalyptic number.

It is an amenable number.

111242277 is a deficient number, since it is larger than the sum of its proper divisors (49441025).

111242277 is a wasteful number, since it uses less digits than its factorization.

111242277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12360259 (or 12360256 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 111242277 is about 10547.1454431993. The cubic root of 111242277 is about 480.9389563253.

Adding to 111242277 its reverse (772242111), we get a palindrome (883484388).

The spelling of 111242277 in words is "one hundred eleven million, two hundred forty-two thousand, two hundred seventy-seven".