1421022543 has 8 divisors (see below), whose sum is σ = 1906765488. Its totient is φ = 941313984.

The previous prime is 1421022517. The next prime is 1421022563. The reversal of 1421022543 is 3452201241.

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

It is not a de Polignac number, because 1421022543 - 2¹⁴ = 1421006159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421022563) 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, 1508046 + ... + 1508987.

It is an arithmetic number, because the mean of its divisors is an integer number (238345686).

Almost surely, 2^1421022543 is an apocalyptic number.

1421022543 is a deficient number, since it is larger than the sum of its proper divisors (485742945).

1421022543 is a wasteful number, since it uses less digits than its factorization.

1421022543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017193.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1421022543 is about 37696.4526580420. The cubic root of 1421022543 is about 1124.2605954179.

Adding to 1421022543 its reverse (3452201241), we get a palindrome (4873223784).

The spelling of 1421022543 in words is "one billion, four hundred twenty-one million, twenty-two thousand, five hundred forty-three".