1145240149 has 2 divisors, whose sum is σ = 1145240150. Its totient is φ = 1145240148.

The previous prime is 1145240147. The next prime is 1145240203. The reversal of 1145240149 is 9410425411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1003749124 + 141491025 = 31682^2 + 11895^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145240149 - 2¹ = 1145240147 is a prime.

Together with 1145240147, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1145240149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145240147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572620074 + 572620075.

It is an arithmetic number, because the mean of its divisors is an integer number (572620075).

Almost surely, 2^1145240149 is an apocalyptic number.

It is an amenable number.

1145240149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145240149 is an equidigital number, since it uses as much as digits as its factorization.

1145240149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1145240149 is about 33841.3969717564. The cubic root of 1145240149 is about 1046.2420916590.

The spelling of 1145240149 in words is "one billion, one hundred forty-five million, two hundred forty thousand, one hundred forty-nine".