1145144131 has 2 divisors, whose sum is σ = 1145144132. Its totient is φ = 1145144130.

The previous prime is 1145144113. The next prime is 1145144149. The reversal of 1145144131 is 1314415411.

Together with previous prime (1145144113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (1145144113) and next prime (1145144149).

It is an emirp because it is prime and its reverse (1314415411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145144131 - 2²¹ = 1143046979 is a prime.

It is a super-2 number, since 2×1145144131² = 2622710161527490322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1145144096 and 1145144105.

It is not a weakly prime, because it can be changed into another prime (1145144731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572572065 + 572572066.

It is an arithmetic number, because the mean of its divisors is an integer number (572572066).

Almost surely, 2^1145144131 is an apocalyptic number.

1145144131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145144131 is an equidigital number, since it uses as much as digits as its factorization.

1145144131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 25.

The square root of 1145144131 is about 33839.9782949103. The cubic root of 1145144131 is about 1046.2128515382.

Adding to 1145144131 its reverse (1314415411), we get a palindrome (2459559542).

The spelling of 1145144131 in words is "one billion, one hundred forty-five million, one hundred forty-four thousand, one hundred thirty-one".