118243571 has 2 divisors, whose sum is σ = 118243572. Its totient is φ = 118243570.

The previous prime is 118243561. The next prime is 118243589. The reversal of 118243571 is 175342811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118243571 - 2¹⁸ = 117981427 is a prime.

It is not a weakly prime, because it can be changed into another prime (118243511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59121785 + 59121786.

It is an arithmetic number, because the mean of its divisors is an integer number (59121786).

Almost surely, 2^118243571 is an apocalyptic number.

118243571 is a deficient number, since it is larger than the sum of its proper divisors (1).

118243571 is an equidigital number, since it uses as much as digits as its factorization.

118243571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 32.

The square root of 118243571 is about 10873.9859757129. The cubic root of 118243571 is about 490.8240624661.

The spelling of 118243571 in words is "one hundred eighteen million, two hundred forty-three thousand, five hundred seventy-one".