122013637 has 2 divisors, whose sum is σ = 122013638. Its totient is φ = 122013636.

The previous prime is 122013631. The next prime is 122013653. The reversal of 122013637 is 736310221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99980001 + 22033636 = 9999^2 + 4694^2 .

It is a cyclic number.

It is not a de Polignac number, because 122013637 - 2⁷ = 122013509 is a prime.

It is a super-2 number, since 2×122013637² = 29774655227935538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122013631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006818 + 61006819.

It is an arithmetic number, because the mean of its divisors is an integer number (61006819).

Almost surely, 2^122013637 is an apocalyptic number.

It is an amenable number.

122013637 is a deficient number, since it is larger than the sum of its proper divisors (1).

122013637 is an equidigital number, since it uses as much as digits as its factorization.

122013637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 122013637 is about 11045.9783179219. The cubic root of 122013637 is about 495.9860452304.

Adding to 122013637 its reverse (736310221), we get a palindrome (858323858).

The spelling of 122013637 in words is "one hundred twenty-two million, thirteen thousand, six hundred thirty-seven".