111528413 has 2 divisors, whose sum is σ = 111528414. Its totient is φ = 111528412.

The previous prime is 111528371. The next prime is 111528427. The reversal of 111528413 is 314825111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56145049 + 55383364 = 7493^2 + 7442^2 .

It is a cyclic number.

It is not a de Polignac number, because 111528413 - 2¹⁰ = 111527389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111528493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55764206 + 55764207.

It is an arithmetic number, because the mean of its divisors is an integer number (55764207).

Almost surely, 2^111528413 is an apocalyptic number.

It is an amenable number.

111528413 is a deficient number, since it is larger than the sum of its proper divisors (1).

111528413 is an equidigital number, since it uses as much as digits as its factorization.

111528413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 26.

The square root of 111528413 is about 10560.7013498157. The cubic root of 111528413 is about 481.3509583435.

The spelling of 111528413 in words is "one hundred eleven million, five hundred twenty-eight thousand, four hundred thirteen".