118972837 has 2 divisors, whose sum is σ = 118972838. Its totient is φ = 118972836.

The previous prime is 118972811. The next prime is 118972853. The reversal of 118972837 is 738279811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65302561 + 53670276 = 8081^2 + 7326^2 .

It is an emirp because it is prime and its reverse (738279811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118972837 - 2¹⁵ = 118940069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118972897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59486418 + 59486419.

It is an arithmetic number, because the mean of its divisors is an integer number (59486419).

Almost surely, 2^118972837 is an apocalyptic number.

It is an amenable number.

118972837 is a deficient number, since it is larger than the sum of its proper divisors (1).

118972837 is an equidigital number, since it uses as much as digits as its factorization.

118972837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 46.

The square root of 118972837 is about 10907.4670295170. The cubic root of 118972837 is about 491.8310458827.

The spelling of 118972837 in words is "one hundred eighteen million, nine hundred seventy-two thousand, eight hundred thirty-seven".