1421150543 has 8 divisors (see below), whose sum is σ = 1505857920. Its totient is φ = 1337434200.

The previous prime is 1421150537. The next prime is 1421150557. The reversal of 1421150543 is 3450511241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421150543 - 2¹⁰ = 1421149519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421150573) 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, 244805 + ... + 250542.

It is an arithmetic number, because the mean of its divisors is an integer number (188232240).

Almost surely, 2^1421150543 is an apocalyptic number.

1421150543 is a deficient number, since it is larger than the sum of its proper divisors (84707377).

1421150543 is a wasteful number, since it uses less digits than its factorization.

1421150543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495517.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1421150543 is about 37698.1503922938. The cubic root of 1421150543 is about 1124.2943506965.

Adding to 1421150543 its reverse (3450511241), we get a palindrome (4871661784).

The spelling of 1421150543 in words is "one billion, four hundred twenty-one million, one hundred fifty thousand, five hundred forty-three".