1150026161 has 2 divisors, whose sum is σ = 1150026162. Its totient is φ = 1150026160.

The previous prime is 1150026139. The next prime is 1150026187. The reversal of 1150026161 is 1616200511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1100182561 + 49843600 = 33169^2 + 7060^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150026161 - 2¹⁸ = 1149764017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1150026131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575013080 + 575013081.

It is an arithmetic number, because the mean of its divisors is an integer number (575013081).

Almost surely, 2^1150026161 is an apocalyptic number.

It is an amenable number.

1150026161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150026161 is an equidigital number, since it uses as much as digits as its factorization.

1150026161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1150026161 is about 33912.0356363342. The cubic root of 1150026161 is about 1047.6974976350.

Adding to 1150026161 its reverse (1616200511), we get a palindrome (2766226672).

The spelling of 1150026161 in words is "one billion, one hundred fifty million, twenty-six thousand, one hundred sixty-one".