1117725671 has 2 divisors, whose sum is σ = 1117725672. Its totient is φ = 1117725670.

The previous prime is 1117725649. The next prime is 1117725683. The reversal of 1117725671 is 1765277111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1117725671 - 2¹⁴ = 1117709287 is a prime.

It is a super-2 number, since 2×1117725671² = 2498621351224800482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117725971) 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, 558862835 + 558862836.

It is an arithmetic number, because the mean of its divisors is an integer number (558862836).

Almost surely, 2^1117725671 is an apocalyptic number.

1117725671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117725671 is an equidigital number, since it uses as much as digits as its factorization.

1117725671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20580, while the sum is 38.

The square root of 1117725671 is about 33432.4045052102. The cubic root of 1117725671 is about 1037.7954011699.

The spelling of 1117725671 in words is "one billion, one hundred seventeen million, seven hundred twenty-five thousand, six hundred seventy-one".