144975814957 has 4 divisors (see below), whose sum is σ = 149974981020. Its totient is φ = 139976648896.

The previous prime is 144975814933. The next prime is 144975814979. The reversal of 144975814957 is 759418579441.

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 47515716361 + 97460098596 = 217981^2 + 312186^2 .

It is a cyclic number.

It is not a de Polignac number, because 144975814957 - 2²³ = 144967426349 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 (144975814757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2499582988 + ... + 2499583045.

It is an arithmetic number, because the mean of its divisors is an integer number (37493745255).

Almost surely, 2^144975814957 is an apocalyptic number.

It is an amenable number.

144975814957 is a deficient number, since it is larger than the sum of its proper divisors (4999166063).

144975814957 is an equidigital number, since it uses as much as digits as its factorization.

144975814957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999166062.

The product of its digits is 50803200, while the sum is 64.

The spelling of 144975814957 in words is "one hundred forty-four billion, nine hundred seventy-five million, eight hundred fourteen thousand, nine hundred fifty-seven".