118654721 has 2 divisors, whose sum is σ = 118654722. Its totient is φ = 118654720.

The previous prime is 118654687. The next prime is 118654729. The reversal of 118654721 is 127456811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113529025 + 5125696 = 10655^2 + 2264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118654721 is a prime.

It is not a weakly prime, because it can be changed into another prime (118654729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59327360 + 59327361.

It is an arithmetic number, because the mean of its divisors is an integer number (59327361).

Almost surely, 2^118654721 is an apocalyptic number.

It is an amenable number.

118654721 is a deficient number, since it is larger than the sum of its proper divisors (1).

118654721 is an equidigital number, since it uses as much as digits as its factorization.

118654721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 35.

The square root of 118654721 is about 10892.8747812504. The cubic root of 118654721 is about 491.3922931213.

The spelling of 118654721 in words is "one hundred eighteen million, six hundred fifty-four thousand, seven hundred twenty-one".