1144536131 has 4 divisors (see below), whose sum is σ = 1144614264. Its totient is φ = 1144458000.

The previous prime is 1144536091. The next prime is 1144536139. The reversal of 1144536131 is 1316354411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1144536131 - 2¹⁸ = 1144273987 is a prime.

It is a super-2 number, since 2×1144536131² = 2619925910328898322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144536094 and 1144536103.

It is not an unprimeable number, because it can be changed into a prime (1144536139) 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, 9770 + ... + 48831.

It is an arithmetic number, because the mean of its divisors is an integer number (286153566).

Almost surely, 2^1144536131 is an apocalyptic number.

1144536131 is a deficient number, since it is larger than the sum of its proper divisors (78133).

1144536131 is an equidigital number, since it uses as much as digits as its factorization.

1144536131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78132.

The product of its digits is 4320, while the sum is 29.

The square root of 1144536131 is about 33830.9936448813. The cubic root of 1144536131 is about 1046.0276608693.

The spelling of 1144536131 in words is "one billion, one hundred forty-four million, five hundred thirty-six thousand, one hundred thirty-one".