144401252 has 6 divisors (see below), whose sum is σ = 252702198. Its totient is φ = 72200624.

The previous prime is 144401189. The next prime is 144401263. The reversal of 144401252 is 252104441.

It can be written as a sum of positive squares in only one way, i.e., 143616256 + 784996 = 11984^2 + 886^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18050153 + ... + 18050160.

It is an arithmetic number, because the mean of its divisors is an integer number (42117033).

Almost surely, 2^144401252 is an apocalyptic number.

It is an amenable number.

144401252 is a deficient number, since it is larger than the sum of its proper divisors (108300946).

144401252 is a wasteful number, since it uses less digits than its factorization.

144401252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36100317 (or 36100315 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 144401252 is about 12016.7072028905. The cubic root of 144401252 is about 524.6346688901.

Adding to 144401252 its reverse (252104441), we get a palindrome (396505693).

The spelling of 144401252 in words is "one hundred forty-four million, four hundred one thousand, two hundred fifty-two".