118941971 has 2 divisors, whose sum is σ = 118941972. Its totient is φ = 118941970.

The previous prime is 118941959. The next prime is 118941973. The reversal of 118941971 is 179149811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118941971 is a prime.

Together with 118941973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118941973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59470985 + 59470986.

It is an arithmetic number, because the mean of its divisors is an integer number (59470986).

Almost surely, 2^118941971 is an apocalyptic number.

118941971 is a deficient number, since it is larger than the sum of its proper divisors (1).

118941971 is an equidigital number, since it uses as much as digits as its factorization.

118941971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 41.

The square root of 118941971 is about 10906.0520354526. The cubic root of 118941971 is about 491.7885090862.

The spelling of 118941971 in words is "one hundred eighteen million, nine hundred forty-one thousand, nine hundred seventy-one".