144609375 has 32 divisors (see below), whose sum is σ = 241405632. Its totient is φ = 77000000.

The previous prime is 144609371. The next prime is 144609379. The reversal of 144609375 is 573906441.

144609375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (144609371) and next prime (144609379).

It is not a de Polignac number, because 144609375 - 2² = 144609371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144609371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234067 + ... + 234683.

It is an arithmetic number, because the mean of its divisors is an integer number (7543926).

Almost surely, 2^144609375 is an apocalyptic number.

144609375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144609375 is a deficient number, since it is larger than the sum of its proper divisors (96796257).

144609375 is an frugal number, since it uses more digits than its factorization.

With its successor (144609376) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (655).

144609375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 144609375 is about 12025.3638198601. The cubic root of 144609375 is about 524.8865968212.

The spelling of 144609375 in words is "one hundred forty-four million, six hundred nine thousand, three hundred seventy-five".