121624441 has 4 divisors (see below), whose sum is σ = 121646500. Its totient is φ = 121602384.

The previous prime is 121624427. The next prime is 121624457. The reversal of 121624441 is 144426121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 32718400 + 88906041 = 5720^2 + 9429^2 .

It is a cyclic number.

It is not a de Polignac number, because 121624441 - 2⁷ = 121624313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121624411) 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, 5335 + ... + 16483.

It is an arithmetic number, because the mean of its divisors is an integer number (30411625).

Almost surely, 2^121624441 is an apocalyptic number.

It is an amenable number.

121624441 is a deficient number, since it is larger than the sum of its proper divisors (22059).

121624441 is a wasteful number, since it uses less digits than its factorization.

121624441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22058.

The product of its digits is 1536, while the sum is 25.

The square root of 121624441 is about 11028.3471563059. The cubic root of 121624441 is about 495.4581222841.

The spelling of 121624441 in words is "one hundred twenty-one million, six hundred twenty-four thousand, four hundred forty-one".