144142045 has 4 divisors (see below), whose sum is σ = 172970460. Its totient is φ = 115313632.

The previous prime is 144142039. The next prime is 144142067. The reversal of 144142045 is 540241441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540241441 = 3307 ⋅163363.

It can be written as a sum of positive squares in 2 ways, for example, as 18096516 + 126045529 = 4254^2 + 11227^2 .

It is a cyclic number.

It is not a de Polignac number, because 144142045 - 2⁷ = 144141917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14414200 + ... + 14414209.

It is an arithmetic number, because the mean of its divisors is an integer number (43242615).

Almost surely, 2^144142045 is an apocalyptic number.

It is an amenable number.

144142045 is a deficient number, since it is larger than the sum of its proper divisors (28828415).

144142045 is an equidigital number, since it uses as much as digits as its factorization.

144142045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28828414.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 144142045 is about 12005.9170828388. The cubic root of 144142045 is about 524.3205662840.

Adding to 144142045 its reverse (540241441), we get a palindrome (684383486).

The spelling of 144142045 in words is "one hundred forty-four million, one hundred forty-two thousand, forty-five".