144252545 has 4 divisors (see below), whose sum is σ = 173103060. Its totient is φ = 115402032.

The previous prime is 144252539. The next prime is 144252551. The reversal of 144252545 is 545252441.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (144252539) and next prime (144252551).

It can be written as a sum of positive squares in 2 ways, for example, as 103713856 + 40538689 = 10184^2 + 6367^2 .

It is a cyclic number.

It is not a de Polignac number, because 144252545 - 2¹⁰ = 144251521 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14425250 + ... + 14425259.

It is an arithmetic number, because the mean of its divisors is an integer number (43275765).

Almost surely, 2^144252545 is an apocalyptic number.

It is an amenable number.

144252545 is a deficient number, since it is larger than the sum of its proper divisors (28850515).

144252545 is an equidigital number, since it uses as much as digits as its factorization.

144252545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28850514.

The product of its digits is 32000, while the sum is 32.

The square root of 144252545 is about 12010.5180987333. The cubic root of 144252545 is about 524.4545143023.

The spelling of 144252545 in words is "one hundred forty-four million, two hundred fifty-two thousand, five hundred forty-five".