1442653143 has 4 divisors (see below), whose sum is σ = 1923537528. Its totient is φ = 961768760.

The previous prime is 1442653141. The next prime is 1442653151. The reversal of 1442653143 is 3413562441.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1442653143 - 2¹ = 1442653141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442653141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240442188 + ... + 240442193.

It is an arithmetic number, because the mean of its divisors is an integer number (480884382).

Almost surely, 2^1442653143 is an apocalyptic number.

1442653143 is a deficient number, since it is larger than the sum of its proper divisors (480884385).

1442653143 is an equidigital number, since it uses as much as digits as its factorization.

1442653143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480884384.

The product of its digits is 34560, while the sum is 33.

The square root of 1442653143 is about 37982.2740630416. The cubic root of 1442653143 is about 1129.9363378132.

The spelling of 1442653143 in words is "one billion, four hundred forty-two million, six hundred fifty-three thousand, one hundred forty-three".