144121454 has 4 divisors (see below), whose sum is σ = 216182184. Its totient is φ = 72060726.

The previous prime is 144121433. The next prime is 144121459. The reversal of 144121454 is 454121441.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144121459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36030362 + ... + 36030365.

It is an arithmetic number, because the mean of its divisors is an integer number (54045546).

Almost surely, 2^144121454 is an apocalyptic number.

144121454 is a deficient number, since it is larger than the sum of its proper divisors (72060730).

144121454 is an equidigital number, since it uses as much as digits as its factorization.

144121454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72060729.

The product of its digits is 2560, while the sum is 26.

The square root of 144121454 is about 12005.0595167204. The cubic root of 144121454 is about 524.2955983230.

Adding to 144121454 its reverse (454121441), we get a palindrome (598242895).

The spelling of 144121454 in words is "one hundred forty-four million, one hundred twenty-one thousand, four hundred fifty-four".