1014021621 has 12 divisors (see below), whose sum is σ = 1541787520. Its totient is φ = 640434600.

The previous prime is 1014021601. The next prime is 1014021623. The reversal of 1014021621 is 1261204101.

1014021621 is a `hidden beast` number, since 1 + 0 + 1 + 40 + 2 + 1 + 621 = 666.

It is not a de Polignac number, because 1014021621 - 2⁹ = 1014021109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1014021594 and 1014021603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1014021623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2964805 + ... + 2965146.

Almost surely, 2^1014021621 is an apocalyptic number.

It is an amenable number.

1014021621 is a deficient number, since it is larger than the sum of its proper divisors (527765899).

1014021621 is a wasteful number, since it uses less digits than its factorization.

1014021621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5929976 (or 5929973 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1014021621 is about 31843.7061442289. The cubic root of 1014021621 is about 1004.6521971658.

Adding to 1014021621 its reverse (1261204101), we get a palindrome (2275225722).

The spelling of 1014021621 in words is "one billion, fourteen million, twenty-one thousand, six hundred twenty-one".