122431633 has 4 divisors (see below), whose sum is σ = 122583780. Its totient is φ = 122279488.

The previous prime is 122431627. The next prime is 122431651. The reversal of 122431633 is 336134221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 336134221 = 89 ⋅3776789.

It can be written as a sum of positive squares in 2 ways, for example, as 118200384 + 4231249 = 10872^2 + 2057^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122431633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122431598 and 122431607.

It is not an unprimeable number, because it can be changed into a prime (122431613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74860 + ... + 76477.

It is an arithmetic number, because the mean of its divisors is an integer number (30645945).

Almost surely, 2^122431633 is an apocalyptic number.

It is an amenable number.

122431633 is a deficient number, since it is larger than the sum of its proper divisors (152147).

122431633 is an equidigital number, since it uses as much as digits as its factorization.

122431633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152146.

The product of its digits is 2592, while the sum is 25.

The square root of 122431633 is about 11064.8828733069. The cubic root of 122431633 is about 496.5517849593.

Adding to 122431633 its product of digits (2592), we get a square (122434225 = 11065²).

Adding to 122431633 its reverse (336134221), we get a palindrome (458565854).

The spelling of 122431633 in words is "one hundred twenty-two million, four hundred thirty-one thousand, six hundred thirty-three".