122136361 has 2 divisors, whose sum is σ = 122136362. Its totient is φ = 122136360.

The previous prime is 122136341. The next prime is 122136367. The reversal of 122136361 is 163631221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101606400 + 20529961 = 10080^2 + 4531^2 .

It is a cyclic number.

It is not a de Polignac number, because 122136361 - 2²¹ = 120039209 is a prime.

It is not a weakly prime, because it can be changed into another prime (122136367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61068180 + 61068181.

It is an arithmetic number, because the mean of its divisors is an integer number (61068181).

Almost surely, 2^122136361 is an apocalyptic number.

It is an amenable number.

122136361 is a deficient number, since it is larger than the sum of its proper divisors (1).

122136361 is an equidigital number, since it uses as much as digits as its factorization.

122136361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 122136361 is about 11051.5320657364. The cubic root of 122136361 is about 496.1522807332.

Adding to 122136361 its reverse (163631221), we get a palindrome (285767582).

The spelling of 122136361 in words is "one hundred twenty-two million, one hundred thirty-six thousand, three hundred sixty-one".