1421530871 has 8 divisors (see below), whose sum is σ = 1505482704. Its totient is φ = 1337616000.

The previous prime is 1421530867. The next prime is 1421530883. The reversal of 1421530871 is 1780351241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421530871 - 2² = 1421530867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421530171) 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, 130121 + ... + 140621.

It is an arithmetic number, because the mean of its divisors is an integer number (188185338).

Almost surely, 2^1421530871 is an apocalyptic number.

1421530871 is a deficient number, since it is larger than the sum of its proper divisors (83951833).

1421530871 is a wasteful number, since it uses less digits than its factorization.

1421530871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18481.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1421530871 is about 37703.1944402593. The cubic root of 1421530871 is about 1124.3946362210.

The spelling of 1421530871 in words is "one billion, four hundred twenty-one million, five hundred thirty thousand, eight hundred seventy-one".