144432401 has 4 divisors (see below), whose sum is σ = 145569792. Its totient is φ = 143295012.

The previous prime is 144432397. The next prime is 144432403. The reversal of 144432401 is 104234441.

It is a happy number.

144432401 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144432401 - 2² = 144432397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144432403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568505 + ... + 568758.

It is an arithmetic number, because the mean of its divisors is an integer number (36392448).

Almost surely, 2^144432401 is an apocalyptic number.

It is an amenable number.

144432401 is a deficient number, since it is larger than the sum of its proper divisors (1137391).

144432401 is a wasteful number, since it uses less digits than its factorization.

144432401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137390.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 144432401 is about 12018.0032035276. The cubic root of 144432401 is about 524.6723894089.

Adding to 144432401 its reverse (104234441), we get a palindrome (248666842).

It can be divided in two parts, 14443 and 2401, that multiplied together give a palindrome (34677643).

The spelling of 144432401 in words is "one hundred forty-four million, four hundred thirty-two thousand, four hundred one".