1421543612 has 24 divisors (see below), whose sum is σ = 2600858400. Its totient is φ = 679845408.

The previous prime is 1421543603. The next prime is 1421543671. The reversal of 1421543612 is 2163451241.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34064 + ... + 63272.

It is an arithmetic number, because the mean of its divisors is an integer number (108369100).

Almost surely, 2^1421543612 is an apocalyptic number.

It is an amenable number.

1421543612 is a deficient number, since it is larger than the sum of its proper divisors (1179314788).

1421543612 is an equidigital number, since it uses as much as digits as its factorization.

1421543612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29282 (or 29234 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 1421543612 is about 37703.3634043437. The cubic root of 1421543612 is about 1124.3979954795.

Adding to 1421543612 its reverse (2163451241), we get a palindrome (3584994853).

The spelling of 1421543612 in words is "one billion, four hundred twenty-one million, five hundred forty-three thousand, six hundred twelve".