122434621 has 4 divisors (see below), whose sum is σ = 122969500. Its totient is φ = 121899744.

The previous prime is 122434619. The next prime is 122434633. The reversal of 122434621 is 126434221.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50608996 + 71825625 = 7114^2 + 8475^2 .

It is a cyclic number.

It is not a de Polignac number, because 122434621 - 2¹ = 122434619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122434691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267096 + ... + 267553.

It is an arithmetic number, because the mean of its divisors is an integer number (30742375).

Almost surely, 2^122434621 is an apocalyptic number.

It is an amenable number.

122434621 is a deficient number, since it is larger than the sum of its proper divisors (534879).

122434621 is an equidigital number, since it uses as much as digits as its factorization.

122434621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534878.

The product of its digits is 2304, while the sum is 25.

The square root of 122434621 is about 11065.0178942467. The cubic root of 122434621 is about 496.5558244509. Note that the first 3 decimals are identical.

Adding to 122434621 its reverse (126434221), we get a palindrome (248868842).

The spelling of 122434621 in words is "one hundred twenty-two million, four hundred thirty-four thousand, six hundred twenty-one".