111750641 has 2 divisors, whose sum is σ = 111750642. Its totient is φ = 111750640.

The previous prime is 111750637. The next prime is 111750701. The reversal of 111750641 is 146057111.

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., 102010000 + 9740641 = 10100^2 + 3121^2 .

It is a cyclic number.

It is not a de Polignac number, because 111750641 - 2² = 111750637 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111750641.

It is not a weakly prime, because it can be changed into another prime (111720641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55875320 + 55875321.

It is an arithmetic number, because the mean of its divisors is an integer number (55875321).

Almost surely, 2^111750641 is an apocalyptic number.

It is an amenable number.

111750641 is a deficient number, since it is larger than the sum of its proper divisors (1).

111750641 is an equidigital number, since it uses as much as digits as its factorization.

111750641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 111750641 is about 10571.2175741492. The cubic root of 111750641 is about 481.6704544800.

The spelling of 111750641 in words is "one hundred eleven million, seven hundred fifty thousand, six hundred forty-one".