118045481 has 2 divisors, whose sum is σ = 118045482. Its totient is φ = 118045480.

The previous prime is 118045471. The next prime is 118045483. The reversal of 118045481 is 184540811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96040000 + 22005481 = 9800^2 + 4691^2 .

It is a cyclic number.

It is not a de Polignac number, because 118045481 - 2²⁶ = 50936617 is a prime.

It is a super-2 number, since 2×118045481² = 27869471169042722, which contains 22 as substring.

Together with 118045483, 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 (118045483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59022740 + 59022741.

It is an arithmetic number, because the mean of its divisors is an integer number (59022741).

Almost surely, 2^118045481 is an apocalyptic number.

It is an amenable number.

118045481 is a deficient number, since it is larger than the sum of its proper divisors (1).

118045481 is an equidigital number, since it uses as much as digits as its factorization.

118045481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 118045481 is about 10864.8737222298. The cubic root of 118045481 is about 490.5498215290.

The spelling of 118045481 in words is "one hundred eighteen million, forty-five thousand, four hundred eighty-one".