1012161061 has 2 divisors, whose sum is σ = 1012161062. Its totient is φ = 1012161060.

The previous prime is 1012161053. The next prime is 1012161071. The reversal of 1012161061 is 1601612101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1005270436 + 6890625 = 31706^2 + 2625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012161061 - 2³ = 1012161053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012161041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506080530 + 506080531.

It is an arithmetic number, because the mean of its divisors is an integer number (506080531).

Almost surely, 2^1012161061 is an apocalyptic number.

It is an amenable number.

1012161061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012161061 is an equidigital number, since it uses as much as digits as its factorization.

1012161061 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 19.

The square root of 1012161061 is about 31814.4787950392. The cubic root of 1012161061 is about 1004.0373647491.

Adding to 1012161061 its reverse (1601612101), we get a palindrome (2613773162).

The spelling of 1012161061 in words is "one billion, twelve million, one hundred sixty-one thousand, sixty-one".