118373947 has 2 divisors, whose sum is σ = 118373948. Its totient is φ = 118373946.

The previous prime is 118373923. The next prime is 118373987. The reversal of 118373947 is 749373811.

It is a weak prime.

It is an emirp because it is prime and its reverse (749373811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118373947 - 2¹⁹ = 117849659 is a prime.

It is not a weakly prime, because it can be changed into another prime (118373987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59186973 + 59186974.

It is an arithmetic number, because the mean of its divisors is an integer number (59186974).

Almost surely, 2^118373947 is an apocalyptic number.

118373947 is a deficient number, since it is larger than the sum of its proper divisors (1).

118373947 is an equidigital number, since it uses as much as digits as its factorization.

118373947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 118373947 is about 10879.9791819654. The cubic root of 118373947 is about 491.0043912925.

The spelling of 118373947 in words is "one hundred eighteen million, three hundred seventy-three thousand, nine hundred forty-seven".