1161012617 has 2 divisors, whose sum is σ = 1161012618. Its totient is φ = 1161012616.

The previous prime is 1161012581. The next prime is 1161012673. The reversal of 1161012617 is 7162101611.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1157088256 + 3924361 = 34016^2 + 1981^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161012617 - 2¹⁸ = 1160750473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161015617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580506308 + 580506309.

It is an arithmetic number, because the mean of its divisors is an integer number (580506309).

Almost surely, 2^1161012617 is an apocalyptic number.

It is an amenable number.

1161012617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161012617 is an equidigital number, since it uses as much as digits as its factorization.

1161012617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 1161012617 is about 34073.6352184501. The cubic root of 1161012617 is about 1051.0232253695.

The spelling of 1161012617 in words is "one billion, one hundred sixty-one million, twelve thousand, six hundred seventeen".