118263641 has 2 divisors, whose sum is σ = 118263642. Its totient is φ = 118263640.

The previous prime is 118263637. The next prime is 118263683. The reversal of 118263641 is 146362811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114918400 + 3345241 = 10720^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 118263641 - 2² = 118263637 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 118263598 and 118263607.

It is not a weakly prime, because it can be changed into another prime (118263941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59131820 + 59131821.

It is an arithmetic number, because the mean of its divisors is an integer number (59131821).

Almost surely, 2^118263641 is an apocalyptic number.

It is an amenable number.

118263641 is a deficient number, since it is larger than the sum of its proper divisors (1).

118263641 is an equidigital number, since it uses as much as digits as its factorization.

118263641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 118263641 is about 10874.9087812266. The cubic root of 118263641 is about 490.8518308022.

The spelling of 118263641 in words is "one hundred eighteen million, two hundred sixty-three thousand, six hundred forty-one".