1020132161 has 2 divisors, whose sum is σ = 1020132162. Its totient is φ = 1020132160.

The previous prime is 1020132131. The next prime is 1020132251. The reversal of 1020132161 is 1612310201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 958273936 + 61858225 = 30956^2 + 7865^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020132161 - 2¹⁸ = 1019870017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020132121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510066080 + 510066081.

It is an arithmetic number, because the mean of its divisors is an integer number (510066081).

Almost surely, 2^1020132161 is an apocalyptic number.

It is an amenable number.

1020132161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020132161 is an equidigital number, since it uses as much as digits as its factorization.

1020132161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1020132161 is about 31939.5078390385. The cubic root of 1020132161 is about 1006.6661835858. Note that the first 3 decimals are identical.

Adding to 1020132161 its reverse (1612310201), we get a palindrome (2632442362).

The spelling of 1020132161 in words is "one billion, twenty million, one hundred thirty-two thousand, one hundred sixty-one".