16238137 has 2 divisors, whose sum is σ = 16238138. Its totient is φ = 16238136.

The previous prime is 16238129. The next prime is 16238143. The reversal of 16238137 is 73183261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16168441 + 69696 = 4021^2 + 264^2 .

It is a cyclic number.

It is not a de Polignac number, because 16238137 - 2³ = 16238129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16238099 and 16238108.

It is not a weakly prime, because it can be changed into another prime (16238237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8119068 + 8119069.

It is an arithmetic number, because the mean of its divisors is an integer number (8119069).

Almost surely, 2^16238137 is an apocalyptic number.

It is an amenable number.

16238137 is a deficient number, since it is larger than the sum of its proper divisors (1).

16238137 is an equidigital number, since it uses as much as digits as its factorization.

16238137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 16238137 is about 4029.6571814486. The cubic root of 16238137 is about 253.2281994885.

The spelling of 16238137 in words is "sixteen million, two hundred thirty-eight thousand, one hundred thirty-seven".