144278099 has 24 divisors (see below), whose sum is σ = 178565040. Its totient is φ = 115831296.

The previous prime is 144278083. The next prime is 144278111. The reversal of 144278099 is 990872441.

It is not a de Polignac number, because 144278099 - 2⁴ = 144278083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144278009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 315479 + ... + 315935.

It is an arithmetic number, because the mean of its divisors is an integer number (7440210).

Almost surely, 2^144278099 is an apocalyptic number.

144278099 is a deficient number, since it is larger than the sum of its proper divisors (34286941).

144278099 is a wasteful number, since it uses less digits than its factorization.

144278099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 144278099 is about 12011.5818691794. The cubic root of 144278099 is about 524.4854811029.

The spelling of 144278099 in words is "one hundred forty-four million, two hundred seventy-eight thousand, ninety-nine".