121424554 has 8 divisors (see below), whose sum is σ = 191723040. Its totient is φ = 57516876.

The previous prime is 121424549. The next prime is 121424581. The reversal of 121424554 is 455424121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1597654 + ... + 1597729.

It is an arithmetic number, because the mean of its divisors is an integer number (23965380).

Almost surely, 2^121424554 is an apocalyptic number.

121424554 is a deficient number, since it is larger than the sum of its proper divisors (70298486).

121424554 is a wasteful number, since it uses less digits than its factorization.

121424554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195404.

The product of its digits is 6400, while the sum is 28.

The square root of 121424554 is about 11019.2810110279. The cubic root of 121424554 is about 495.1865487397.

Adding to 121424554 its reverse (455424121), we get a palindrome (576848675).

The spelling of 121424554 in words is "one hundred twenty-one million, four hundred twenty-four thousand, five hundred fifty-four".