1065652621 has 16 divisors (see below), whose sum is σ = 1217968128. Its totient is φ = 923511600.

The previous prime is 1065652597. The next prime is 1065652649. The reversal of 1065652621 is 1262565601.

1065652621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1065652621 - 2¹⁵ = 1065619853 is a prime.

It is a super-2 number, since 2×1065652621² = 2271231017288339282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065652661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475 + ... + 46168.

It is an arithmetic number, because the mean of its divisors is an integer number (76123008).

Almost surely, 2^1065652621 is an apocalyptic number.

1065652621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1065652621 is a deficient number, since it is larger than the sum of its proper divisors (152315507).

1065652621 is a wasteful number, since it uses less digits than its factorization.

1065652621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46752.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1065652621 is about 32644.3352053614. The cubic root of 1065652621 is about 1021.4220268850.

The spelling of 1065652621 in words is "one billion, sixty-five million, six hundred fifty-two thousand, six hundred twenty-one".