144528742 has 4 divisors (see below), whose sum is σ = 216793116. Its totient is φ = 72264370.

The previous prime is 144528707. The next prime is 144528743. The reversal of 144528742 is 247825441.

144528742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247825441 = 173 ⋅1432517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144528743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36132184 + ... + 36132187.

It is an arithmetic number, because the mean of its divisors is an integer number (54198279).

Almost surely, 2^144528742 is an apocalyptic number.

144528742 is a deficient number, since it is larger than the sum of its proper divisors (72264374).

144528742 is an equidigital number, since it uses as much as digits as its factorization.

144528742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72264373.

The product of its digits is 71680, while the sum is 37.

The square root of 144528742 is about 12022.0107303229. The cubic root of 144528742 is about 524.7890211978.

The spelling of 144528742 in words is "one hundred forty-four million, five hundred twenty-eight thousand, seven hundred forty-two".