1443642141 has 8 divisors (see below), whose sum is σ = 1925042944. Its totient is φ = 962334720.

The previous prime is 1443642121. The next prime is 1443642163. The reversal of 1443642141 is 1412463441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1443642141 - 2¹⁰ = 1443641117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1443642099 and 1443642108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443642121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30420 + ... + 61746.

It is an arithmetic number, because the mean of its divisors is an integer number (240630368).

Almost surely, 2^1443642141 is an apocalyptic number.

It is an amenable number.

1443642141 is a deficient number, since it is larger than the sum of its proper divisors (481400803).

1443642141 is a wasteful number, since it uses less digits than its factorization.

1443642141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46691.

The product of its digits is 9216, while the sum is 30.

The square root of 1443642141 is about 37995.2910371799. The cubic root of 1443642141 is about 1130.1944847595.

The spelling of 1443642141 in words is "one billion, four hundred forty-three million, six hundred forty-two thousand, one hundred forty-one".