122640341 has 2 divisors, whose sum is σ = 122640342. Its totient is φ = 122640340.

The previous prime is 122640313. The next prime is 122640367. The reversal of 122640341 is 143046221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122434225 + 206116 = 11065^2 + 454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122640341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122640241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61320170 + 61320171.

It is an arithmetic number, because the mean of its divisors is an integer number (61320171).

Almost surely, 2^122640341 is an apocalyptic number.

It is an amenable number.

122640341 is a deficient number, since it is larger than the sum of its proper divisors (1).

122640341 is an equidigital number, since it uses as much as digits as its factorization.

122640341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 122640341 is about 11074.3099559295. The cubic root of 122640341 is about 496.8337804288.

Adding to 122640341 its reverse (143046221), we get a palindrome (265686562).

The spelling of 122640341 in words is "one hundred twenty-two million, six hundred forty thousand, three hundred forty-one".