1421370831 has 8 divisors (see below), whose sum is σ = 1895914800. Its totient is φ = 947203712.

The previous prime is 1421370827. The next prime is 1421370869. The reversal of 1421370831 is 1380731241.

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 1421370831 - 2² = 1421370827 is a prime.

It is a super-2 number, since 2×1421370831² = 4040590078435261122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421370871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85290 + ... + 100583.

It is an arithmetic number, because the mean of its divisors is an integer number (236989350).

Almost surely, 2^1421370831 is an apocalyptic number.

1421370831 is a deficient number, since it is larger than the sum of its proper divisors (474543969).

1421370831 is a wasteful number, since it uses less digits than its factorization.

1421370831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188425.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1421370831 is about 37701.0720139362. The cubic root of 1421370831 is about 1124.3524387856.

The spelling of 1421370831 in words is "one billion, four hundred twenty-one million, three hundred seventy thousand, eight hundred thirty-one".