144134401 has 4 divisors (see below), whose sum is σ = 146853972. Its totient is φ = 141414832.

The previous prime is 144134387. The next prime is 144134411. The reversal of 144134401 is 104431441.

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 128142400 + 15992001 = 11320^2 + 3999^2 .

It is a cyclic number.

It is not a de Polignac number, because 144134401 - 2⁵ = 144134369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144134411) 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, 1359706 + ... + 1359811.

It is an arithmetic number, because the mean of its divisors is an integer number (36713493).

Almost surely, 2^144134401 is an apocalyptic number.

It is an amenable number.

144134401 is a deficient number, since it is larger than the sum of its proper divisors (2719571).

144134401 is an equidigital number, since it uses as much as digits as its factorization.

144134401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719570.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 144134401 is about 12005.5987355900. The cubic root of 144134401 is about 524.3112977017.

Adding to 144134401 its reverse (104431441), we get a palindrome (248565842).

The spelling of 144134401 in words is "one hundred forty-four million, one hundred thirty-four thousand, four hundred one".