121455426 has 32 divisors (see below), whose sum is σ = 249661440. Its totient is φ = 39371216.

The previous prime is 121455421. The next prime is 121455443. The reversal of 121455426 is 624554121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121455393 and 121455402.

It is not an unprimeable number, because it can be changed into a prime (121455421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45805 + ... + 48383.

It is an arithmetic number, because the mean of its divisors is an integer number (7801920).

Almost surely, 2^121455426 is an apocalyptic number.

121455426 is an abundant number, since it is smaller than the sum of its proper divisors (128206014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121455426 is a wasteful number, since it uses less digits than its factorization.

121455426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798.

The product of its digits is 9600, while the sum is 30.

The square root of 121455426 is about 11020.6817393481. The cubic root of 121455426 is about 495.2285119814.

It can be divided in two parts, 12145 and 5426, that added together give a palindrome (17571).

The spelling of 121455426 in words is "one hundred twenty-one million, four hundred fifty-five thousand, four hundred twenty-six".