122136562 has 4 divisors (see below), whose sum is σ = 183204846. Its totient is φ = 61068280.

The previous prime is 122136557. The next prime is 122136563. The reversal of 122136562 is 265631221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 109809441 + 12327121 = 10479^2 + 3511^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122136562.

It is not an unprimeable number, because it can be changed into a prime (122136563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30534139 + ... + 30534142.

Almost surely, 2^122136562 is an apocalyptic number.

122136562 is a deficient number, since it is larger than the sum of its proper divisors (61068284).

122136562 is an equidigital number, since it uses as much as digits as its factorization.

122136562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61068283.

The product of its digits is 4320, while the sum is 28.

The square root of 122136562 is about 11051.5411594945. The cubic root of 122136562 is about 496.1525529060.

Adding to 122136562 its reverse (265631221), we get a palindrome (387767783).

The spelling of 122136562 in words is "one hundred twenty-two million, one hundred thirty-six thousand, five hundred sixty-two".