118438501 has 2 divisors, whose sum is σ = 118438502. Its totient is φ = 118438500.

The previous prime is 118438499. The next prime is 118438519. The reversal of 118438501 is 105834811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66814276 + 51624225 = 8174^2 + 7185^2 .

It is an emirp because it is prime and its reverse (105834811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118438501 - 2¹ = 118438499 is a prime.

Together with 118438499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118433501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59219250 + 59219251.

It is an arithmetic number, because the mean of its divisors is an integer number (59219251).

Almost surely, 2^118438501 is an apocalyptic number.

It is an amenable number.

118438501 is a deficient number, since it is larger than the sum of its proper divisors (1).

118438501 is an equidigital number, since it uses as much as digits as its factorization.

118438501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 118438501 is about 10882.9454193247. The cubic root of 118438501 is about 491.0936297843.

The spelling of 118438501 in words is "one hundred eighteen million, four hundred thirty-eight thousand, five hundred one".