144378071 has 4 divisors (see below), whose sum is σ = 144514200. Its totient is φ = 144241944.

The previous prime is 144378043. The next prime is 144378077. The reversal of 144378071 is 170873441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144378071 - 2⁶ = 144378007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144378077) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 66461 + ... + 68598.

It is an arithmetic number, because the mean of its divisors is an integer number (36128550).

Almost surely, 2^144378071 is an apocalyptic number.

144378071 is a deficient number, since it is larger than the sum of its proper divisors (136129).

144378071 is a wasteful number, since it uses less digits than its factorization.

144378071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136128.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 144378071 is about 12015.7426320640. The cubic root of 144378071 is about 524.6065938633.

The spelling of 144378071 in words is "one hundred forty-four million, three hundred seventy-eight thousand, seventy-one".