1111545125 has 16 divisors (see below), whose sum is σ = 1460222400. Its totient is φ = 842432400.

The previous prime is 1111545101. The next prime is 1111545139. The reversal of 1111545125 is 5215451111.

It is a happy number.

It is not a de Polignac number, because 1111545125 - 2¹⁰ = 1111544101 is a prime.

It is a super-2 number, since 2×1111545125² = 2471065129822531250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111545094 and 1111545103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231635 + ... + 236384.

It is an arithmetic number, because the mean of its divisors is an integer number (91263900).

Almost surely, 2^1111545125 is an apocalyptic number.

It is an amenable number.

1111545125 is a deficient number, since it is larger than the sum of its proper divisors (348677275).

1111545125 is an equidigital number, since it uses as much as digits as its factorization.

1111545125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468053 (or 468043 counting only the distinct ones).

The product of its digits is 1000, while the sum is 26.

The square root of 1111545125 is about 33339.8429060486. The cubic root of 1111545125 is about 1035.8790093024.

Adding to 1111545125 its reverse (5215451111), we get a palindrome (6326996236).

The spelling of 1111545125 in words is "one billion, one hundred eleven million, five hundred forty-five thousand, one hundred twenty-five".