3111727745 has 16 divisors (see below), whose sum is σ = 4273482240. Its totient is φ = 2130771264.

The previous prime is 3111727741. The next prime is 3111727781. The reversal of 3111727745 is 5477271113.

It is a cyclic number.

It is not a de Polignac number, because 3111727745 - 2² = 3111727741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3111727699 and 3111727708.

It is not an unprimeable number, because it can be changed into a prime (3111727741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36662 + ... + 86991.

It is an arithmetic number, because the mean of its divisors is an integer number (267092640).

Almost surely, 2^3111727745 is an apocalyptic number.

3111727745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3111727745 is a deficient number, since it is larger than the sum of its proper divisors (1161754495).

3111727745 is a wasteful number, since it uses less digits than its factorization.

3111727745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124384.

The product of its digits is 41160, while the sum is 38.

The square root of 3111727745 is about 55782.8624668903. The cubic root of 3111727745 is about 1459.9361554930.

Adding to 3111727745 its reverse (5477271113), we get a palindrome (8588998858).

The spelling of 3111727745 in words is "three billion, one hundred eleven million, seven hundred twenty-seven thousand, seven hundred forty-five".