144235323109 has 4 divisors (see below), whose sum is σ = 144237268620. Its totient is φ = 144233377600.

The previous prime is 144235323079. The next prime is 144235323121. The reversal of 144235323109 is 901323532441.

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 29385502084 + 114849821025 = 171422^2 + 338895^2 .

It is a cyclic number.

It is not a de Polignac number, because 144235323109 - 2¹³ = 144235314917 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 (144235353109) 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, 856954 + ... + 1011355.

It is an arithmetic number, because the mean of its divisors is an integer number (36059317155).

Almost surely, 2^144235323109 is an apocalyptic number.

It is an amenable number.

144235323109 is a deficient number, since it is larger than the sum of its proper divisors (1945511).

144235323109 is an equidigital number, since it uses as much as digits as its factorization.

144235323109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945510.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 144235323109 in words is "one hundred forty-four billion, two hundred thirty-five million, three hundred twenty-three thousand, one hundred nine".