968240137 has 2 divisors, whose sum is σ = 968240138. Its totient is φ = 968240136.

The previous prime is 968240113. The next prime is 968240173. The reversal of 968240137 is 731042869.

Together with next prime (968240173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 707772816 + 260467321 = 26604^2 + 16139^2 .

It is an emirp because it is prime and its reverse (731042869) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-968240137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 968240137.

It is not a weakly prime, because it can be changed into another prime (968240837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484120068 + 484120069.

It is an arithmetic number, because the mean of its divisors is an integer number (484120069).

Almost surely, 2^968240137 is an apocalyptic number.

It is an amenable number.

968240137 is a deficient number, since it is larger than the sum of its proper divisors (1).

968240137 is an equidigital number, since it uses as much as digits as its factorization.

968240137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 968240137 is about 31116.5572806504. The cubic root of 968240137 is about 989.2992820656.

The spelling of 968240137 in words is "nine hundred sixty-eight million, two hundred forty thousand, one hundred thirty-seven".