1421068165 has 48 divisors (see below), whose sum is σ = 1996538544. Its totient is φ = 966901760.

The previous prime is 1421068153. The next prime is 1421068183. The reversal of 1421068165 is 5618601241.

It can be written as a sum of positive squares in 8 ways, for example, as 833569 + 1420234596 = 913^2 + 37686^2 .

It is not a de Polignac number, because 1421068165 - 2⁹ = 1421067653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421068165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2396109 + ... + 2396701.

It is an arithmetic number, because the mean of its divisors is an integer number (41594553).

Almost surely, 2^1421068165 is an apocalyptic number.

It is an amenable number.

1421068165 is a deficient number, since it is larger than the sum of its proper divisors (575470379).

1421068165 is a wasteful number, since it uses less digits than its factorization.

1421068165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1421068165 is about 37697.0577764366. The cubic root of 1421068165 is about 1124.2726267700.

The spelling of 1421068165 in words is "one billion, four hundred twenty-one million, sixty-eight thousand, one hundred sixty-five".