1421143192 has 16 divisors (see below), whose sum is σ = 3045306960. Its totient is φ = 609061344.

The previous prime is 1421143187. The next prime is 1421143201. The reversal of 1421143192 is 2913411241.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1421143192.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12688723 + ... + 12688834.

It is an arithmetic number, because the mean of its divisors is an integer number (190331685).

Almost surely, 2^1421143192 is an apocalyptic number.

It is an amenable number.

1421143192 is an abundant number, since it is smaller than the sum of its proper divisors (1624163768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421143192 is a wasteful number, since it uses less digits than its factorization.

1421143192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25377570 (or 25377566 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 1421143192 is about 37698.0528940156. The cubic root of 1421143192 is about 1124.2924121962.

The spelling of 1421143192 in words is "one billion, four hundred twenty-one million, one hundred forty-three thousand, one hundred ninety-two".