122940641 has 2 divisors, whose sum is σ = 122940642. Its totient is φ = 122940640.

The previous prime is 122940611. The next prime is 122940667. The reversal of 122940641 is 146049221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120121600 + 2819041 = 10960^2 + 1679^2 .

It is a cyclic number.

It is not a de Polignac number, because 122940641 - 2¹⁰ = 122939617 is a prime.

It is a super-2 number, since 2×122940641² = 30228802418981762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (122940611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61470320 + 61470321.

It is an arithmetic number, because the mean of its divisors is an integer number (61470321).

Almost surely, 2^122940641 is an apocalyptic number.

It is an amenable number.

122940641 is a deficient number, since it is larger than the sum of its proper divisors (1).

122940641 is an equidigital number, since it uses as much as digits as its factorization.

122940641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 122940641 is about 11087.8600730709. The cubic root of 122940641 is about 497.2389694852.

Adding to 122940641 its reverse (146049221), we get a palindrome (268989862).

The spelling of 122940641 in words is "one hundred twenty-two million, nine hundred forty thousand, six hundred forty-one".