121814425 has 6 divisors (see below), whose sum is σ = 151049918. Its totient is φ = 97451520.

The previous prime is 121814393. The next prime is 121814431. The reversal of 121814425 is 524418121.

It can be written as a sum of positive squares in 3 ways, for example, as 15745024 + 106069401 = 3968^2 + 10299^2 .

It is not a de Polignac number, because 121814425 - 2⁵ = 121814393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121814393 and 121814402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2436264 + ... + 2436313.

Almost surely, 2^121814425 is an apocalyptic number.

It is an amenable number.

121814425 is a deficient number, since it is larger than the sum of its proper divisors (29235493).

121814425 is an equidigital number, since it uses as much as digits as its factorization.

121814425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872587 (or 4872582 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 121814425 is about 11036.9572346730. The cubic root of 121814425 is about 495.7159655980.

The spelling of 121814425 in words is "one hundred twenty-one million, eight hundred fourteen thousand, four hundred twenty-five".