118289641 has 2 divisors, whose sum is σ = 118289642. Its totient is φ = 118289640.

The previous prime is 118289617. The next prime is 118289651. The reversal of 118289641 is 146982811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71995225 + 46294416 = 8485^2 + 6804^2 .

It is a cyclic number.

It is not a de Polignac number, because 118289641 - 2¹¹ = 118287593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118289594 and 118289603.

It is not a weakly prime, because it can be changed into another prime (118289651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59144820 + 59144821.

It is an arithmetic number, because the mean of its divisors is an integer number (59144821).

Almost surely, 2^118289641 is an apocalyptic number.

It is an amenable number.

118289641 is a deficient number, since it is larger than the sum of its proper divisors (1).

118289641 is an equidigital number, since it uses as much as digits as its factorization.

118289641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 40.

The square root of 118289641 is about 10876.1041278575. The cubic root of 118289641 is about 490.8877990630.

The spelling of 118289641 in words is "one hundred eighteen million, two hundred eighty-nine thousand, six hundred forty-one".