1421871471 has 6 divisors (see below), whose sum is σ = 2053814360. Its totient is φ = 947914308.

The previous prime is 1421871463. The next prime is 1421871481. The reversal of 1421871471 is 1741781241.

1421871471 is a `hidden beast` number, since 1 + 4 + 2 + 187 + 1 + 471 = 666.

It is not a de Polignac number, because 1421871471 - 2³ = 1421871463 is a prime.

It is a super-3 number, since 3×1421871471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421871481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78992851 + ... + 78992868.

Almost surely, 2^1421871471 is an apocalyptic number.

1421871471 is a deficient number, since it is larger than the sum of its proper divisors (631942889).

1421871471 is a wasteful number, since it uses less digits than its factorization.

1421871471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157985725 (or 157985722 counting only the distinct ones).

The product of its digits is 12544, while the sum is 36.

The square root of 1421871471 is about 37707.7110283825. The cubic root of 1421871471 is about 1124.4844310186.

The spelling of 1421871471 in words is "one billion, four hundred twenty-one million, eight hundred seventy-one thousand, four hundred seventy-one".