408239532137 has 2 divisors, whose sum is σ = 408239532138. Its totient is φ = 408239532136.

The previous prime is 408239532073. The next prime is 408239532139. The reversal of 408239532137 is 731235932804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376622780416 + 31616751721 = 613696^2 + 177811^2 .

It is a cyclic number.

It is not a de Polignac number, because 408239532137 - 2⁶ = 408239532073 is a prime.

Together with 408239532139, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 408239532091 and 408239532100.

It is not a weakly prime, because it can be changed into another prime (408239532139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204119766068 + 204119766069.

It is an arithmetic number, because the mean of its divisors is an integer number (204119766069).

Almost surely, 2^408239532137 is an apocalyptic number.

It is an amenable number.

408239532137 is a deficient number, since it is larger than the sum of its proper divisors (1).

408239532137 is an equidigital number, since it uses as much as digits as its factorization.

408239532137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 408239532137 in words is "four hundred eight billion, two hundred thirty-nine million, five hundred thirty-two thousand, one hundred thirty-seven".