144621353 has 8 divisors (see below), whose sum is σ = 146033160. Its totient is φ = 143216640.

The previous prime is 144621319. The next prime is 144621371. The reversal of 144621353 is 353126441.

It can be written as a sum of positive squares in 4 ways, for example, as 6135529 + 138485824 = 2477^2 + 11768^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 144621353 - 2⁸ = 144621097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144621313) 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, 44963 + ... + 48071.

It is an arithmetic number, because the mean of its divisors is an integer number (18254145).

Almost surely, 2^144621353 is an apocalyptic number.

It is an amenable number.

144621353 is a deficient number, since it is larger than the sum of its proper divisors (1411807).

144621353 is a wasteful number, since it uses less digits than its factorization.

144621353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547.

The product of its digits is 8640, while the sum is 29.

The square root of 144621353 is about 12025.8618402175. The cubic root of 144621353 is about 524.9010885466.

Adding to 144621353 its reverse (353126441), we get a palindrome (497747794).

The spelling of 144621353 in words is "one hundred forty-four million, six hundred twenty-one thousand, three hundred fifty-three".