916398137 has 2 divisors, whose sum is σ = 916398138. Its totient is φ = 916398136.

The previous prime is 916398079. The next prime is 916398157. The reversal of 916398137 is 731893619.

It is a happy number.

916398137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509811241 + 406586896 = 22579^2 + 20164^2 .

It is a cyclic number.

It is not a de Polignac number, because 916398137 - 2¹⁶ = 916332601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 916398091 and 916398100.

It is not a weakly prime, because it can be changed into another prime (916398157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458199068 + 458199069.

It is an arithmetic number, because the mean of its divisors is an integer number (458199069).

Almost surely, 2^916398137 is an apocalyptic number.

It is an amenable number.

916398137 is a deficient number, since it is larger than the sum of its proper divisors (1).

916398137 is an equidigital number, since it uses as much as digits as its factorization.

916398137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 47.

The square root of 916398137 is about 30272.0685946633. The cubic root of 916398137 is about 971.3179155870.

The spelling of 916398137 in words is "nine hundred sixteen million, three hundred ninety-eight thousand, one hundred thirty-seven".