1125162727 has 4 divisors (see below), whose sum is σ = 1211713720. Its totient is φ = 1038611736.

The previous prime is 1125162683. The next prime is 1125162749. The reversal of 1125162727 is 7272615211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7272615211 = 349 ⋅20838439.

It is a cyclic number.

It is not a de Polignac number, because 1125162727 - 2¹¹ = 1125160679 is a prime.

It is a super-3 number, since 3×1125162727³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125162692 and 1125162701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125162827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43275477 + ... + 43275502.

It is an arithmetic number, because the mean of its divisors is an integer number (302928430).

Almost surely, 2^1125162727 is an apocalyptic number.

1125162727 is a deficient number, since it is larger than the sum of its proper divisors (86550993).

1125162727 is an equidigital number, since it uses as much as digits as its factorization.

1125162727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86550992.

The product of its digits is 11760, while the sum is 34.

The square root of 1125162727 is about 33543.4453656746. The cubic root of 1125162727 is about 1040.0920551528.

Adding to 1125162727 its reverse (7272615211), we get a palindrome (8397777938).

The spelling of 1125162727 in words is "one billion, one hundred twenty-five million, one hundred sixty-two thousand, seven hundred twenty-seven".