1154320571 has 2 divisors, whose sum is σ = 1154320572. Its totient is φ = 1154320570.

The previous prime is 1154320543. The next prime is 1154320597. The reversal of 1154320571 is 1750234511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1154320571 - 2¹⁰ = 1154319547 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1154320511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577160285 + 577160286.

It is an arithmetic number, because the mean of its divisors is an integer number (577160286).

Almost surely, 2^1154320571 is an apocalyptic number.

1154320571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154320571 is an equidigital number, since it uses as much as digits as its factorization.

1154320571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1154320571 is about 33975.2935380991. The cubic root of 1154320571 is about 1048.9999763722. Note that the first 4 decimals are identical.

The spelling of 1154320571 in words is "one billion, one hundred fifty-four million, three hundred twenty thousand, five hundred seventy-one".