144542345 has 4 divisors (see below), whose sum is σ = 173450820. Its totient is φ = 115633872.

The previous prime is 144542339. The next prime is 144542371. The reversal of 144542345 is 543245441.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25928464 + 118613881 = 5092^2 + 10891^2 .

It is a cyclic number.

It is not a de Polignac number, because 144542345 - 2¹⁰ = 144541321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14454230 + ... + 14454239.

It is an arithmetic number, because the mean of its divisors is an integer number (43362705).

Almost surely, 2^144542345 is an apocalyptic number.

It is an amenable number.

144542345 is a deficient number, since it is larger than the sum of its proper divisors (28908475).

144542345 is an equidigital number, since it uses as much as digits as its factorization.

144542345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28908474.

The product of its digits is 38400, while the sum is 32.

The square root of 144542345 is about 12022.5764709566. The cubic root of 144542345 is about 524.8054850074.

Adding to 144542345 its reverse (543245441), we get a palindrome (687787786).

The spelling of 144542345 in words is "one hundred forty-four million, five hundred forty-two thousand, three hundred forty-five".