111543027725 has 24 divisors (see below), whose sum is σ = 144380340168. Its totient is φ = 85399315200.

The previous prime is 111543027709. The next prime is 111543027727. The reversal of 111543027725 is 527720345111.

It can be written as a sum of positive squares in 12 ways, for example, as 5175075844 + 106367951881 = 71938^2 + 326141^2 .

It is not a de Polignac number, because 111543027725 - 2⁴ = 111543027709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111543027727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 931994 + ... + 1044843.

It is an arithmetic number, because the mean of its divisors is an integer number (6015847507).

Almost surely, 2^111543027725 is an apocalyptic number.

It is an amenable number.

111543027725 is a deficient number, since it is larger than the sum of its proper divisors (32837312443).

111543027725 is a wasteful number, since it uses less digits than its factorization.

111543027725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976945 (or 1976940 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 111543027725 in words is "one hundred eleven billion, five hundred forty-three million, twenty-seven thousand, seven hundred twenty-five".