144263749285 has 8 divisors (see below), whose sum is σ = 173707342200. Its totient is φ = 115017104064.

The previous prime is 144263749277. The next prime is 144263749291. The reversal of 144263749285 is 582947362441.

It can be written as a sum of positive squares in 4 ways, for example, as 93057942916 + 51205806369 = 305054^2 + 226287^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144263749285 - 2³ = 144263749277 is a prime.

It is a super-2 number, since 2×144263749285² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49235310 + ... + 49238239.

It is an arithmetic number, because the mean of its divisors is an integer number (21713417775).

Almost surely, 2^144263749285 is an apocalyptic number.

It is an amenable number.

144263749285 is a deficient number, since it is larger than the sum of its proper divisors (29443592915).

144263749285 is an equidigital number, since it uses as much as digits as its factorization.

144263749285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98473847.

The product of its digits is 11612160, while the sum is 55.

The spelling of 144263749285 in words is "one hundred forty-four billion, two hundred sixty-three million, seven hundred forty-nine thousand, two hundred eighty-five".