1421244533 has 4 divisors (see below), whose sum is σ = 1422353568. Its totient is φ = 1420135500.

The previous prime is 1421244529. The next prime is 1421244547. The reversal of 1421244533 is 3354421241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1421244533 - 2² = 1421244529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1421244496 and 1421244505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421244563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552593 + ... + 555158.

It is an arithmetic number, because the mean of its divisors is an integer number (355588392).

Almost surely, 2^1421244533 is an apocalyptic number.

It is an amenable number.

1421244533 is a deficient number, since it is larger than the sum of its proper divisors (1109035).

1421244533 is a wasteful number, since it uses less digits than its factorization.

1421244533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109034.

The product of its digits is 11520, while the sum is 29.

The square root of 1421244533 is about 37699.3969845673. The cubic root of 1421244533 is about 1124.3191358015.

Adding to 1421244533 its reverse (3354421241), we get a palindrome (4775665774).

The spelling of 1421244533 in words is "one billion, four hundred twenty-one million, two hundred forty-four thousand, five hundred thirty-three".