144038693 has 2 divisors, whose sum is σ = 144038694. Its totient is φ = 144038692.

The previous prime is 144038689. The next prime is 144038729. The reversal of 144038693 is 396830441.

144038693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95902849 + 48135844 = 9793^2 + 6938^2 .

It is a cyclic number.

It is not a de Polignac number, because 144038693 - 2² = 144038689 is a prime.

It is a super-2 number, since 2×144038693² = 41494290162296498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144038893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72019346 + 72019347.

It is an arithmetic number, because the mean of its divisors is an integer number (72019347).

Almost surely, 2^144038693 is an apocalyptic number.

It is an amenable number.

144038693 is a deficient number, since it is larger than the sum of its proper divisors (1).

144038693 is an equidigital number, since it uses as much as digits as its factorization.

144038693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 144038693 is about 12001.6121000472. The cubic root of 144038693 is about 524.1952210944.

The spelling of 144038693 in words is "one hundred forty-four million, thirty-eight thousand, six hundred ninety-three".