144755973 has 6 divisors (see below), whose sum is σ = 209091974. Its totient is φ = 96503976.

The previous prime is 144755939. The next prime is 144755977. The reversal of 144755973 is 379557441.

144755973 is a `hidden beast` number, since 14 + 47 + 5 + 597 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 100040004 + 44715969 = 10002^2 + 6687^2 .

It is not a de Polignac number, because 144755973 - 2¹⁷ = 144624901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144755977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8041990 + ... + 8042007.

Almost surely, 2^144755973 is an apocalyptic number.

It is an amenable number.

144755973 is a deficient number, since it is larger than the sum of its proper divisors (64336001).

144755973 is a wasteful number, since it uses less digits than its factorization.

144755973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16084003 (or 16084000 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 144755973 is about 12031.4576423640. The cubic root of 144755973 is about 525.0639051461.

The spelling of 144755973 in words is "one hundred forty-four million, seven hundred fifty-five thousand, nine hundred seventy-three".