1421574549 has 8 divisors (see below), whose sum is σ = 1935761280. Its totient is φ = 927552096.

The previous prime is 1421574541. The next prime is 1421574559. The reversal of 1421574549 is 9454751241.

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

It is not a de Polignac number, because 1421574549 - 2³ = 1421574541 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421574549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421574541) 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, 5040904 + ... + 5041185.

It is an arithmetic number, because the mean of its divisors is an integer number (241970160).

Almost surely, 2^1421574549 is an apocalyptic number.

It is an amenable number.

1421574549 is a deficient number, since it is larger than the sum of its proper divisors (514186731).

1421574549 is a wasteful number, since it uses less digits than its factorization.

1421574549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10082139.

The product of its digits is 201600, while the sum is 42.

The square root of 1421574549 is about 37703.7736705492. The cubic root of 1421574549 is about 1124.4061521641.

The spelling of 1421574549 in words is "one billion, four hundred twenty-one million, five hundred seventy-four thousand, five hundred forty-nine".