1154020279 has 2 divisors, whose sum is σ = 1154020280. Its totient is φ = 1154020278.

The previous prime is 1154020253. The next prime is 1154020289. The reversal of 1154020279 is 9720204511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1154020279 - 2⁵ = 1154020247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1154020279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1154020289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577010139 + 577010140.

It is an arithmetic number, because the mean of its divisors is an integer number (577010140).

Almost surely, 2^1154020279 is an apocalyptic number.

1154020279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154020279 is an equidigital number, since it uses as much as digits as its factorization.

1154020279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1154020279 is about 33970.8739805145. The cubic root of 1154020279 is about 1048.9090040639.

The spelling of 1154020279 in words is "one billion, one hundred fifty-four million, twenty thousand, two hundred seventy-nine".