144878575461 has 4 divisors (see below), whose sum is σ = 193171433952. Its totient is φ = 96585716972.

The previous prime is 144878575453. The next prime is 144878575511. The reversal of 144878575461 is 164575878441.

It is a happy number.

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 144878575461 - 2³ = 144878575453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144878575395 and 144878575404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144878573461) 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, 24146429241 + ... + 24146429246.

It is an arithmetic number, because the mean of its divisors is an integer number (48292858488).

Almost surely, 2^144878575461 is an apocalyptic number.

It is an amenable number.

144878575461 is a deficient number, since it is larger than the sum of its proper divisors (48292858491).

144878575461 is an equidigital number, since it uses as much as digits as its factorization.

144878575461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48292858490.

The product of its digits is 30105600, while the sum is 60.

The spelling of 144878575461 in words is "one hundred forty-four billion, eight hundred seventy-eight million, five hundred seventy-five thousand, four hundred sixty-one".