144573146 has 4 divisors (see below), whose sum is σ = 216859722. Its totient is φ = 72286572.

The previous prime is 144573133. The next prime is 144573167. The reversal of 144573146 is 641375441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 137147521 + 7425625 = 11711^2 + 2725^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36143285 + ... + 36143288.

Almost surely, 2^144573146 is an apocalyptic number.

144573146 is a deficient number, since it is larger than the sum of its proper divisors (72286576).

144573146 is an equidigital number, since it uses as much as digits as its factorization.

144573146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72286575.

The product of its digits is 40320, while the sum is 35.

The square root of 144573146 is about 12023.8573677502. The cubic root of 144573146 is about 524.8427598644.

The spelling of 144573146 in words is "one hundred forty-four million, five hundred seventy-three thousand, one hundred forty-six".