118117451 has 2 divisors, whose sum is σ = 118117452. Its totient is φ = 118117450.

The previous prime is 118117429. The next prime is 118117459. The reversal of 118117451 is 154711811.

It is a strong prime.

It is an emirp because it is prime and its reverse (154711811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118117451 - 2⁶ = 118117387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118117459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59058725 + 59058726.

It is an arithmetic number, because the mean of its divisors is an integer number (59058726).

Almost surely, 2^118117451 is an apocalyptic number.

118117451 is a deficient number, since it is larger than the sum of its proper divisors (1).

118117451 is an equidigital number, since it uses as much as digits as its factorization.

118117451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1120, while the sum is 29.

The square root of 118117451 is about 10868.1852670996. The cubic root of 118117451 is about 490.6494941238.

The spelling of 118117451 in words is "one hundred eighteen million, one hundred seventeen thousand, four hundred fifty-one".