144645275 has 24 divisors (see below), whose sum is σ = 188987904. Its totient is φ = 109604000.

The previous prime is 144645239. The next prime is 144645283. The reversal of 144645275 is 572546441.

It is a happy number.

It is not a de Polignac number, because 144645275 - 2⁶ = 144645211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60350 + ... + 62700.

It is an arithmetic number, because the mean of its divisors is an integer number (7874496).

Almost surely, 2^144645275 is an apocalyptic number.

144645275 is a deficient number, since it is larger than the sum of its proper divisors (44342629).

144645275 is a wasteful number, since it uses less digits than its factorization.

144645275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491 (or 2486 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The square root of 144645275 is about 12026.8564055617. The cubic root of 144645275 is about 524.9300284676.

The spelling of 144645275 in words is "one hundred forty-four million, six hundred forty-five thousand, two hundred seventy-five".