1040162161 has 2 divisors, whose sum is σ = 1040162162. Its totient is φ = 1040162160.

The previous prime is 1040162129. The next prime is 1040162171. The reversal of 1040162161 is 1612610401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 872847936 + 167314225 = 29544^2 + 12935^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040162161 - 2⁵ = 1040162129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040162171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520081080 + 520081081.

It is an arithmetic number, because the mean of its divisors is an integer number (520081081).

Almost surely, 2^1040162161 is an apocalyptic number.

It is an amenable number.

1040162161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040162161 is an equidigital number, since it uses as much as digits as its factorization.

1040162161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1040162161 is about 32251.5450947703. The cubic root of 1040162161 is about 1013.2120597188.

Adding to 1040162161 its reverse (1612610401), we get a palindrome (2652772562).

The spelling of 1040162161 in words is "one billion, forty million, one hundred sixty-two thousand, one hundred sixty-one".