144121431 has 8 divisors (see below), whose sum is σ = 193224304. Its totient is φ = 95549760.

The previous prime is 144121357. The next prime is 144121433. The reversal of 144121431 is 134121441.

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

It is not a de Polignac number, because 144121431 - 2⁷ = 144121303 is a prime.

It is a super-2 number, since 2×144121431² = 41541973746975522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144121398 and 144121407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144121433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132166 + ... + 133251.

It is an arithmetic number, because the mean of its divisors is an integer number (24153038).

Almost surely, 2^144121431 is an apocalyptic number.

144121431 is a deficient number, since it is larger than the sum of its proper divisors (49102873).

144121431 is a wasteful number, since it uses less digits than its factorization.

144121431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265601.

The product of its digits is 384, while the sum is 21.

The square root of 144121431 is about 12005.0585587910. The cubic root of 144121431 is about 524.2955704326.

Adding to 144121431 its reverse (134121441), we get a palindrome (278242872).

The spelling of 144121431 in words is "one hundred forty-four million, one hundred twenty-one thousand, four hundred thirty-one".