111195389 has 2 divisors, whose sum is σ = 111195390. Its totient is φ = 111195388.

The previous prime is 111195379. The next prime is 111195433. The reversal of 111195389 is 983591111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68724100 + 42471289 = 8290^2 + 6517^2 .

It is a cyclic number.

It is not a de Polignac number, because 111195389 - 2²⁴ = 94418173 is a prime.

It is a super-2 number, since 2×111195389² = 24728829069722642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111195319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55597694 + 55597695.

It is an arithmetic number, because the mean of its divisors is an integer number (55597695).

Almost surely, 2^111195389 is an apocalyptic number.

It is an amenable number.

111195389 is a deficient number, since it is larger than the sum of its proper divisors (1).

111195389 is an equidigital number, since it uses as much as digits as its factorization.

111195389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 38.

The square root of 111195389 is about 10544.9224274055. The cubic root of 111195389 is about 480.8713757992.

The spelling of 111195389 in words is "one hundred eleven million, one hundred ninety-five thousand, three hundred eighty-nine".