111552361 has 2 divisors, whose sum is σ = 111552362. Its totient is φ = 111552360.

The previous prime is 111552359. The next prime is 111552367. The reversal of 111552361 is 163255111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107246736 + 4305625 = 10356^2 + 2075^2 .

It is a cyclic number.

It is not a de Polignac number, because 111552361 - 2¹ = 111552359 is a prime.

Together with 111552359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111552367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55776180 + 55776181.

It is an arithmetic number, because the mean of its divisors is an integer number (55776181).

Almost surely, 2^111552361 is an apocalyptic number.

It is an amenable number.

111552361 is a deficient number, since it is larger than the sum of its proper divisors (1).

111552361 is an equidigital number, since it uses as much as digits as its factorization.

111552361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 25.

The square root of 111552361 is about 10561.8351151682. The cubic root of 111552361 is about 481.3854086612.

The spelling of 111552361 in words is "one hundred eleven million, five hundred fifty-two thousand, three hundred sixty-one".