144461641 has 4 divisors (see below), whose sum is σ = 146496384. Its totient is φ = 142426900.

The previous prime is 144461627. The next prime is 144461687. The reversal of 144461641 is 146164441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144461641 - 2¹⁷ = 144330569 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144461041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017265 + ... + 1017406.

It is an arithmetic number, because the mean of its divisors is an integer number (36624096).

Almost surely, 2^144461641 is an apocalyptic number.

It is an amenable number.

144461641 is a deficient number, since it is larger than the sum of its proper divisors (2034743).

144461641 is an equidigital number, since it uses as much as digits as its factorization.

144461641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034742.

The product of its digits is 9216, while the sum is 31.

The square root of 144461641 is about 12019.2196502102. The cubic root of 144461641 is about 524.7077932504.

The spelling of 144461641 in words is "one hundred forty-four million, four hundred sixty-one thousand, six hundred forty-one".