144420652 has 6 divisors (see below), whose sum is σ = 252736148. Its totient is φ = 72210324.

The previous prime is 144420649. The next prime is 144420701. The reversal of 144420652 is 256024441.

It is a self number, because there is not a number n which added to its sum of digits gives 144420652.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18052578 + ... + 18052585.

Almost surely, 2^144420652 is an apocalyptic number.

It is an amenable number.

144420652 is a deficient number, since it is larger than the sum of its proper divisors (108315496).

144420652 is a wasteful number, since it uses less digits than its factorization.

144420652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36105167 (or 36105165 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 144420652 is about 12017.5143852629. The cubic root of 144420652 is about 524.6581623541.

The spelling of 144420652 in words is "one hundred forty-four million, four hundred twenty thousand, six hundred fifty-two".