144117772285 has 4 divisors (see below), whose sum is σ = 172941326748. Its totient is φ = 115294217824.

The previous prime is 144117772247. The next prime is 144117772363. The reversal of 144117772285 is 582277711441.

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 111698329369 + 32419442916 = 334213^2 + 180054^2 .

It is a cyclic number.

It is not a de Polignac number, because 144117772285 - 2¹⁹ = 144117247997 is a prime.

It is a super-2 number, since 2×144117772285² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14411777224 + ... + 14411777233.

It is an arithmetic number, because the mean of its divisors is an integer number (43235331687).

Almost surely, 2^144117772285 is an apocalyptic number.

It is an amenable number.

144117772285 is a deficient number, since it is larger than the sum of its proper divisors (28823554463).

144117772285 is an equidigital number, since it uses as much as digits as its factorization.

144117772285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28823554462.

The product of its digits is 878080, while the sum is 49.

The spelling of 144117772285 in words is "one hundred forty-four billion, one hundred seventeen million, seven hundred seventy-two thousand, two hundred eighty-five".