121434554 has 16 divisors (see below), whose sum is σ = 186108840. Its totient is φ = 59404800.

The previous prime is 121434541. The next prime is 121434559. The reversal of 121434554 is 455434121.

It can be written as a sum of positive squares in 4 ways, for example, as 121330225 + 104329 = 11015^2 + 323^2 .

It is not an unprimeable number, because it can be changed into a prime (121434559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41954 + ... + 44754.

Almost surely, 2^121434554 is an apocalyptic number.

121434554 is a deficient number, since it is larger than the sum of its proper divisors (64674286).

121434554 is a wasteful number, since it uses less digits than its factorization.

121434554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265.

The product of its digits is 9600, while the sum is 29.

The square root of 121434554 is about 11019.7347517987. The cubic root of 121434554 is about 495.2001421726.

Adding to 121434554 its reverse (455434121), we get a palindrome (576868675).

The spelling of 121434554 in words is "one hundred twenty-one million, four hundred thirty-four thousand, five hundred fifty-four".