144168077 has 4 divisors (see below), whose sum is σ = 149139420. Its totient is φ = 139196736.

The previous prime is 144168053. The next prime is 144168083. The reversal of 144168077 is 770861441.

144168077 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.

It can be written as a sum of positive squares in 2 ways, for example, as 116014441 + 28153636 = 10771^2 + 5306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144168077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144168077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144168047) 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, 2485628 + ... + 2485685.

It is an arithmetic number, because the mean of its divisors is an integer number (37284855).

Almost surely, 2^144168077 is an apocalyptic number.

It is an amenable number.

144168077 is a deficient number, since it is larger than the sum of its proper divisors (4971343).

144168077 is an equidigital number, since it uses as much as digits as its factorization.

144168077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4971342.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 144168077 is about 12007.0011659865. The cubic root of 144168077 is about 524.3521284175.

The spelling of 144168077 in words is "one hundred forty-four million, one hundred sixty-eight thousand, seventy-seven".