1015632161 has 2 divisors, whose sum is σ = 1015632162. Its totient is φ = 1015632160.

The previous prime is 1015632151. The next prime is 1015632187. The reversal of 1015632161 is 1612365101.

It is an a-pointer prime, because the next prime (1015632187) can be obtained adding 1015632161 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1014741025 + 891136 = 31855^2 + 944^2 .

It is an emirp because it is prime and its reverse (1612365101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1015632161 - 2¹⁰ = 1015631137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1015632161.

It is not a weakly prime, because it can be changed into another prime (1015632131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507816080 + 507816081.

It is an arithmetic number, because the mean of its divisors is an integer number (507816081).

Almost surely, 2^1015632161 is an apocalyptic number.

It is an amenable number.

1015632161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015632161 is an equidigital number, since it uses as much as digits as its factorization.

1015632161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1015632161 is about 31868.9843107684. The cubic root of 1015632161 is about 1005.1838020965.

Adding to 1015632161 its reverse (1612365101), we get a palindrome (2627997262).

The spelling of 1015632161 in words is "one billion, fifteen million, six hundred thirty-two thousand, one hundred sixty-one".