144642211155245 has 4 divisors (see below), whose sum is σ = 173570653386300. Its totient is φ = 115713768924192.

The previous prime is 144642211155193. The next prime is 144642211155271. The reversal of 144642211155245 is 542551112246441.

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 65404405115401 + 79237806039844 = 8087299^2 + 8901562^2 .

It is a cyclic number.

It is not a de Polignac number, because 144642211155245 - 2⁸ = 144642211154989 is a prime.

It is a super-2 number, since 2×144642211155245² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144642211155245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14464221115520 + ... + 14464221115529.

It is an arithmetic number, because the mean of its divisors is an integer number (43392663346575).

Almost surely, 2^{144642211155245} is an apocalyptic number.

It is an amenable number.

144642211155245 is a deficient number, since it is larger than the sum of its proper divisors (28928442231055).

144642211155245 is an equidigital number, since it uses as much as digits as its factorization.

144642211155245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28928442231054.

The product of its digits is 1536000, while the sum is 47.

The spelling of 144642211155245 in words is "one hundred forty-four trillion, six hundred forty-two billion, two hundred eleven million, one hundred fifty-five thousand, two hundred forty-five".