111813253 has 2 divisors, whose sum is σ = 111813254. Its totient is φ = 111813252.

The previous prime is 111813227. The next prime is 111813257. The reversal of 111813253 is 352318111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86992929 + 24820324 = 9327^2 + 4982^2 .

It is a cyclic number.

It is not a de Polignac number, because 111813253 - 2⁹ = 111812741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111813257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55906626 + 55906627.

It is an arithmetic number, because the mean of its divisors is an integer number (55906627).

Almost surely, 2^111813253 is an apocalyptic number.

It is an amenable number.

111813253 is a deficient number, since it is larger than the sum of its proper divisors (1).

111813253 is an equidigital number, since it uses as much as digits as its factorization.

111813253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 25.

The square root of 111813253 is about 10574.1785969408. The cubic root of 111813253 is about 481.7603949629.

The spelling of 111813253 in words is "one hundred eleven million, eight hundred thirteen thousand, two hundred fifty-three".