144121546 has 16 divisors (see below), whose sum is σ = 231170760. Its totient is φ = 67148800.

The previous prime is 144121543. The next prime is 144121547. The reversal of 144121546 is 645121441.

144121546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 144120025 + 1521 = 12005^2 + 39^2 .

It is not an unprimeable number, because it can be changed into a prime (144121543) 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, 17551 + ... + 24418.

Almost surely, 2^144121546 is an apocalyptic number.

144121546 is a deficient number, since it is larger than the sum of its proper divisors (87049214).

144121546 is a wasteful number, since it uses less digits than its factorization.

144121546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42089.

The product of its digits is 3840, while the sum is 28.

The square root of 144121546 is about 12005.0633484376. The cubic root of 144121546 is about 524.2957098844.

Adding to 144121546 its reverse (645121441), we get a palindrome (789242987).

The spelling of 144121546 in words is "one hundred forty-four million, one hundred twenty-one thousand, five hundred forty-six".