1145141 has 2 divisors, whose sum is σ = 1145142. Its totient is φ = 1145140.

The previous prime is 1145129. The next prime is 1145143. The reversal of 1145141 is 1415411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1110916 + 34225 = 1054^2 + 185^2 .

It is an emirp because it is prime and its reverse (1415411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145141 - 2⁶ = 1145077 is a prime.

It is a super-2 number, since 2×1145141² = 2622695819762, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1145143, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572570 + 572571.

It is an arithmetic number, because the mean of its divisors is an integer number (572571).

2^1145141 is an apocalyptic number.

It is an amenable number.

1145141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145141 is an equidigital number, since it uses as much as digits as its factorization.

1145141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80, while the sum is 17.

The square root of 1145141 is about 1070.1126108966. The cubic root of 1145141 is about 104.6211898035.

The spelling of 1145141 in words is "one million, one hundred forty-five thousand, one hundred forty-one".