144625705 has 12 divisors (see below), whose sum is σ = 201886020. Its totient is φ = 99171744.

The previous prime is 144625667. The next prime is 144625717. The reversal of 144625705 is 507526441.

It can be written as a sum of positive squares in 2 ways, for example, as 58859584 + 85766121 = 7672^2 + 9261^2 .

It is not a de Polignac number, because 144625705 - 2⁷ = 144625577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294910 + ... + 295399.

It is an arithmetic number, because the mean of its divisors is an integer number (16823835).

Almost surely, 2^144625705 is an apocalyptic number.

It is an amenable number.

144625705 is a deficient number, since it is larger than the sum of its proper divisors (57260315).

144625705 is an equidigital number, since it uses as much as digits as its factorization.

144625705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590328 (or 590321 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 144625705 is about 12026.0427822289. The cubic root of 144625705 is about 524.9063536673.

The spelling of 144625705 in words is "one hundred forty-four million, six hundred twenty-five thousand, seven hundred five".