144735004657 has 4 divisors (see below), whose sum is σ = 144735836580. Its totient is φ = 144734172736.

The previous prime is 144735004649. The next prime is 144735004721. The reversal of 144735004657 is 756400537441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 756400537441 = 89963 ⋅8407907.

It can be written as a sum of positive squares in 2 ways, for example, as 119160278416 + 25574726241 = 345196^2 + 159921^2 .

It is a cyclic number.

It is not a de Polignac number, because 144735004657 - 2³ = 144735004649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144735004607) 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, 44308 + ... + 539845.

It is an arithmetic number, because the mean of its divisors is an integer number (36183959145).

Almost surely, 2^144735004657 is an apocalyptic number.

It is an amenable number.

144735004657 is a deficient number, since it is larger than the sum of its proper divisors (831923).

144735004657 is an equidigital number, since it uses as much as digits as its factorization.

144735004657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831922.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 144735004657 in words is "one hundred forty-four billion, seven hundred thirty-five million, four thousand, six hundred fifty-seven".