122690837 has 2 divisors, whose sum is σ = 122690838. Its totient is φ = 122690836.

The previous prime is 122690831. The next prime is 122690873. The reversal of 122690837 is 738096221.

Together with next prime (122690873) 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., 98227921 + 24462916 = 9911^2 + 4946^2 .

It is an emirp because it is prime and its reverse (738096221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122690837 - 2⁶ = 122690773 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122690837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122690831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61345418 + 61345419.

It is an arithmetic number, because the mean of its divisors is an integer number (61345419).

Almost surely, 2^122690837 is an apocalyptic number.

It is an amenable number.

122690837 is a deficient number, since it is larger than the sum of its proper divisors (1).

122690837 is an equidigital number, since it uses as much as digits as its factorization.

122690837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 122690837 is about 11076.5895924693. The cubic root of 122690837 is about 496.9019599416.

The spelling of 122690837 in words is "one hundred twenty-two million, six hundred ninety thousand, eight hundred thirty-seven".