15630641 has 6 divisors (see below), whose sum is σ = 16925670. Its totient is φ = 14428128.

The previous prime is 15630619. The next prime is 15630653. The reversal of 15630641 is 14603651.

It can be written as a sum of positive squares in 3 ways, for example, as 193600 + 15437041 = 440^2 + 3929^2 .

It is not a de Polignac number, because 15630641 - 2⁶ = 15630577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15630641.

It is not an unprimeable number, because it can be changed into a prime (15630611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46076 + ... + 46413.

It is an arithmetic number, because the mean of its divisors is an integer number (2820945).

Almost surely, 2^15630641 is an apocalyptic number.

It is an amenable number.

15630641 is a deficient number, since it is larger than the sum of its proper divisors (1295029).

15630641 is an equidigital number, since it uses as much as digits as its factorization.

15630641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92515 (or 92502 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 15630641 is about 3953.5605471524. The cubic root of 15630641 is about 250.0300817136.

The spelling of 15630641 in words is "fifteen million, six hundred thirty thousand, six hundred forty-one".