1148721367 has 2 divisors, whose sum is σ = 1148721368. Its totient is φ = 1148721366.

The previous prime is 1148721319. The next prime is 1148721373. The reversal of 1148721367 is 7631278411.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7631278411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1148721367 - 2¹⁵ = 1148688599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148721397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574360683 + 574360684.

It is an arithmetic number, because the mean of its divisors is an integer number (574360684).

Almost surely, 2^1148721367 is an apocalyptic number.

1148721367 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148721367 is an equidigital number, since it uses as much as digits as its factorization.

1148721367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 40.

The square root of 1148721367 is about 33892.7922573517. The cubic root of 1148721367 is about 1047.3011162941.

Adding to 1148721367 its reverse (7631278411), we get a palindrome (8779999778).

The spelling of 1148721367 in words is "one billion, one hundred forty-eight million, seven hundred twenty-one thousand, three hundred sixty-seven".