144428601573 has 12 divisors (see below), whose sum is σ = 212039077068. Its totient is φ = 94707279360.

The previous prime is 144428601511. The next prime is 144428601673. The reversal of 144428601573 is 375106824441.

144428601573 is a `hidden beast` number, since 14 + 4 + 4 + 2 + 8 + 60 + 1 + 573 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41135141124 + 103293460449 = 202818^2 + 321393^2 .

It is not a de Polignac number, because 144428601573 - 2¹³ = 144428593381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144428601673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131537340 + ... + 131538437.

It is an arithmetic number, because the mean of its divisors is an integer number (17669923089).

Almost surely, 2^144428601573 is an apocalyptic number.

It is an amenable number.

144428601573 is a deficient number, since it is larger than the sum of its proper divisors (67610475495).

144428601573 is a wasteful number, since it uses less digits than its factorization.

144428601573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263075844 (or 263075841 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 144428601573 in words is "one hundred forty-four billion, four hundred twenty-eight million, six hundred one thousand, five hundred seventy-three".