1144125531 has 6 divisors (see below), whose sum is σ = 1652625780. Its totient is φ = 762750348.

The previous prime is 1144125529. The next prime is 1144125539. The reversal of 1144125531 is 1355214411.

1144125531 is a `hidden beast` number, since 1 + 1 + 4 + 4 + 125 + 531 = 666.

It is not a de Polignac number, because 1144125531 - 2¹ = 1144125529 is a prime.

It is a super-2 number, since 2×1144125531² = 2618046461372063922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1144125495 and 1144125504.

It is not an unprimeable number, because it can be changed into a prime (1144125539) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63562521 + ... + 63562538.

It is an arithmetic number, because the mean of its divisors is an integer number (275437630).

Almost surely, 2^1144125531 is an apocalyptic number.

1144125531 is a deficient number, since it is larger than the sum of its proper divisors (508500249).

1144125531 is a wasteful number, since it uses less digits than its factorization.

1144125531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127125065 (or 127125062 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1144125531 is about 33824.9247005814. The cubic root of 1144125531 is about 1045.9025591456.

Adding to 1144125531 its reverse (1355214411), we get a palindrome (2499339942).

The spelling of 1144125531 in words is "one billion, one hundred forty-four million, one hundred twenty-five thousand, five hundred thirty-one".