1145122387 has 2 divisors, whose sum is σ = 1145122388. Its totient is φ = 1145122386.

The previous prime is 1145122369. The next prime is 1145122403. The reversal of 1145122387 is 7832215411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1145122387 - 2¹⁹ = 1144598099 is a prime.

It is a super-2 number, since 2×1145122387² = 2622610562417155538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1145122337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572561193 + 572561194.

It is an arithmetic number, because the mean of its divisors is an integer number (572561194).

Almost surely, 2^1145122387 is an apocalyptic number.

1145122387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145122387 is an equidigital number, since it uses as much as digits as its factorization.

1145122387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 1145122387 is about 33839.6570165834. The cubic root of 1145122387 is about 1046.2062296655.

Adding to 1145122387 its reverse (7832215411), we get a palindrome (8977337798).

The spelling of 1145122387 in words is "one billion, one hundred forty-five million, one hundred twenty-two thousand, three hundred eighty-seven".