144440634164397 has 4 divisors (see below), whose sum is σ = 192587512219200. Its totient is φ = 96293756109596.

The previous prime is 144440634164341. The next prime is 144440634164549. The reversal of 144440634164397 is 793461436044441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144440634164397 - 2⁷ = 144440634164269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144440634164397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144440634164317) 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, 24073439027397 + ... + 24073439027402.

It is an arithmetic number, because the mean of its divisors is an integer number (48146878054800).

Almost surely, 2^{144440634164397} is an apocalyptic number.

It is an amenable number.

144440634164397 is a deficient number, since it is larger than the sum of its proper divisors (48146878054803).

144440634164397 is an equidigital number, since it uses as much as digits as its factorization.

144440634164397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48146878054802.

The product of its (nonzero) digits is 83607552, while the sum is 60.

The spelling of 144440634164397 in words is "one hundred forty-four trillion, four hundred forty billion, six hundred thirty-four million, one hundred sixty-four thousand, three hundred ninety-seven".