144739195 has 4 divisors (see below), whose sum is σ = 173687040. Its totient is φ = 115791352.

The previous prime is 144739193. The next prime is 144739201. The reversal of 144739195 is 591937441.

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 144739195 - 2¹ = 144739193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144739193) 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, 14473915 + ... + 14473924.

It is an arithmetic number, because the mean of its divisors is an integer number (43421760).

Almost surely, 2^144739195 is an apocalyptic number.

144739195 is a deficient number, since it is larger than the sum of its proper divisors (28947845).

144739195 is an equidigital number, since it uses as much as digits as its factorization.

144739195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28947844.

The product of its digits is 136080, while the sum is 43.

The square root of 144739195 is about 12030.7603666601. The cubic root of 144739195 is about 525.0436184470.

The spelling of 144739195 in words is "one hundred forty-four million, seven hundred thirty-nine thousand, one hundred ninety-five".