144392530 has 16 divisors (see below), whose sum is σ = 262208664. Its totient is φ = 57245440.

The previous prime is 144392489. The next prime is 144392531. The reversal of 144392530 is 35293441.

It can be written as a sum of positive squares in 4 ways, for example, as 39350529 + 105042001 = 6273^2 + 10249^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144392492 and 144392501.

It is not an unprimeable number, because it can be changed into a prime (144392531) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 62761 + ... + 65020.

Almost surely, 2^144392530 is an apocalyptic number.

144392530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144392530 is a deficient number, since it is larger than the sum of its proper divisors (117816134).

144392530 is a wasteful number, since it uses less digits than its factorization.

144392530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127901.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 144392530 is about 12016.3442860131. The cubic root of 144392530 is about 524.6241058337.

The spelling of 144392530 in words is "one hundred forty-four million, three hundred ninety-two thousand, five hundred thirty".