1042530161 has 2 divisors, whose sum is σ = 1042530162. Its totient is φ = 1042530160.

The previous prime is 1042530127. The next prime is 1042530179. The reversal of 1042530161 is 1610352401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 998560000 + 43970161 = 31600^2 + 6631^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042530161 - 2¹⁴ = 1042513777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042530121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521265080 + 521265081.

It is an arithmetic number, because the mean of its divisors is an integer number (521265081).

Almost surely, 2^1042530161 is an apocalyptic number.

It is an amenable number.

1042530161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042530161 is an equidigital number, since it uses as much as digits as its factorization.

1042530161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1042530161 is about 32288.2356439617. The cubic root of 1042530161 is about 1013.9803590711.

Adding to 1042530161 its reverse (1610352401), we get a palindrome (2652882562).

The spelling of 1042530161 in words is "one billion, forty-two million, five hundred thirty thousand, one hundred sixty-one".