111537645245 has 8 divisors (see below), whose sum is σ = 144140957016. Its totient is φ = 82366261056.

The previous prime is 111537645227. The next prime is 111537645259. The reversal of 111537645245 is 542546735111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7027801 + 111530617444 = 2651^2 + 333962^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111537645245 - 2⁶ = 111537645181 is a prime.

It is a super-2 number, since 2×111537645245² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111537645196 and 111537645205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857981822 + ... + 857981951.

It is an arithmetic number, because the mean of its divisors is an integer number (18017619627).

Almost surely, 2^111537645245 is an apocalyptic number.

It is an amenable number.

111537645245 is a deficient number, since it is larger than the sum of its proper divisors (32603311771).

111537645245 is a wasteful number, since it uses less digits than its factorization.

111537645245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715963791.

The product of its digits is 504000, while the sum is 44.

The spelling of 111537645245 in words is "one hundred eleven billion, five hundred thirty-seven million, six hundred forty-five thousand, two hundred forty-five".