111267361 has 2 divisors, whose sum is σ = 111267362. Its totient is φ = 111267360.

The previous prime is 111267347. The next prime is 111267419. The reversal of 111267361 is 163762111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101123136 + 10144225 = 10056^2 + 3185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111267361 is a prime.

It is not a weakly prime, because it can be changed into another prime (111267301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55633680 + 55633681.

It is an arithmetic number, because the mean of its divisors is an integer number (55633681).

Almost surely, 2^111267361 is an apocalyptic number.

It is an amenable number.

111267361 is a deficient number, since it is larger than the sum of its proper divisors (1).

111267361 is an equidigital number, since it uses as much as digits as its factorization.

111267361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 28.

The square root of 111267361 is about 10548.3345130878. The cubic root of 111267361 is about 480.9751025533.

It can be divided in two parts, 111267 and 361, that added together give a triangular number (111628 = T₄₇₂).

The spelling of 111267361 in words is "one hundred eleven million, two hundred sixty-seven thousand, three hundred sixty-one".