111620741 has 2 divisors, whose sum is σ = 111620742. Its totient is φ = 111620740.

The previous prime is 111620731. The next prime is 111620767. The reversal of 111620741 is 147026111.

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., 76562500 + 35058241 = 8750^2 + 5921^2 .

It is an emirp because it is prime and its reverse (147026111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111620741 - 2¹⁴ = 111604357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111620701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55810370 + 55810371.

It is an arithmetic number, because the mean of its divisors is an integer number (55810371).

Almost surely, 2^111620741 is an apocalyptic number.

It is an amenable number.

111620741 is a deficient number, since it is larger than the sum of its proper divisors (1).

111620741 is an equidigital number, since it uses as much as digits as its factorization.

111620741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 111620741 is about 10565.0717460886. The cubic root of 111620741 is about 481.4837493576.

Adding to 111620741 its reverse (147026111), we get a palindrome (258646852).

The spelling of 111620741 in words is "one hundred eleven million, six hundred twenty thousand, seven hundred forty-one".