111045525449 has 2 divisors, whose sum is σ = 111045525450. Its totient is φ = 111045525448.

The previous prime is 111045525433. The next prime is 111045525473. The reversal of 111045525449 is 944525540111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106523904400 + 4521621049 = 326380^2 + 67243^2 .

It is a cyclic number.

It is not a de Polignac number, because 111045525449 - 2⁴ = 111045525433 is a prime.

It is a super-2 number, since 2×111045525449² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111045525419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55522762724 + 55522762725.

It is an arithmetic number, because the mean of its divisors is an integer number (55522762725).

Almost surely, 2^111045525449 is an apocalyptic number.

It is an amenable number.

111045525449 is a deficient number, since it is larger than the sum of its proper divisors (1).

111045525449 is an equidigital number, since it uses as much as digits as its factorization.

111045525449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 111045525449 in words is "one hundred eleven billion, forty-five million, five hundred twenty-five thousand, four hundred forty-nine".