1421143004 has 6 divisors (see below), whose sum is σ = 2487000264. Its totient is φ = 710571500.

The previous prime is 1421143001. The next prime is 1421143043. The reversal of 1421143004 is 4003411241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421143001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177642872 + ... + 177642879.

It is an arithmetic number, because the mean of its divisors is an integer number (414500044).

Almost surely, 2^1421143004 is an apocalyptic number.

It is an amenable number.

1421143004 is a deficient number, since it is larger than the sum of its proper divisors (1065857260).

1421143004 is a wasteful number, since it uses less digits than its factorization.

1421143004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355285755 (or 355285753 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1421143004 is about 37698.0504005181. The cubic root of 1421143004 is about 1124.2923626195.

Adding to 1421143004 its reverse (4003411241), we get a palindrome (5424554245).

The spelling of 1421143004 in words is "one billion, four hundred twenty-one million, one hundred forty-three thousand, four".