1145292779 has 2 divisors, whose sum is σ = 1145292780. Its totient is φ = 1145292778.

The previous prime is 1145292767. The next prime is 1145292781. The reversal of 1145292779 is 9772925411.

It is a strong prime.

It is an emirp because it is prime and its reverse (9772925411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145292779 - 2⁴ = 1145292763 is a prime.

Together with 1145292781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1145262779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572646389 + 572646390.

It is an arithmetic number, because the mean of its divisors is an integer number (572646390).

Almost surely, 2^1145292779 is an apocalyptic number.

1145292779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145292779 is an equidigital number, since it uses as much as digits as its factorization.

1145292779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 47.

The square root of 1145292779 is about 33842.1745607459. The cubic root of 1145292779 is about 1046.2581182475.

The spelling of 1145292779 in words is "one billion, one hundred forty-five million, two hundred ninety-two thousand, seven hundred seventy-nine".