1421390912841 has 15 divisors (see below), whose sum is σ = 2123328380151. Its totient is φ = 947586788568.

The previous prime is 1421390912827. The next prime is 1421390912869. The reversal of 1421390912841 is 1482190931241.

The square root of 1421390912841 is 1192221.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 746791517241 + 674599395600 = 864171^2 + 821340^2 .

It is not a de Polignac number, because 1421390912841 - 2⁷ = 1421390912713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421390912801) 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 14 ways as a sum of consecutive naturals, for example, 10663755 + ... + 10796223.

Almost surely, 2^{1421390912841} is an apocalyptic number.

1421390912841 is the 1192221-st square number.

1421390912841 is the 596111-st centered octagonal number.

It is an amenable number.

1421390912841 is a deficient number, since it is larger than the sum of its proper divisors (701937467310).

1421390912841 is an frugal number, since it uses more digits than its factorization.

1421390912841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264950 (or 132472 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 1421390912841 in words is "one trillion, four hundred twenty-one billion, three hundred ninety million, nine hundred twelve thousand, eight hundred forty-one".