1161030641 has 2 divisors, whose sum is σ = 1161030642. Its totient is φ = 1161030640.

The previous prime is 1161030583. The next prime is 1161030671. The reversal of 1161030641 is 1460301611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 645922225 + 515108416 = 25415^2 + 22696^2 .

It is an emirp because it is prime and its reverse (1460301611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161030641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161030671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580515320 + 580515321.

It is an arithmetic number, because the mean of its divisors is an integer number (580515321).

Almost surely, 2^1161030641 is an apocalyptic number.

It is an amenable number.

1161030641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161030641 is an equidigital number, since it uses as much as digits as its factorization.

1161030641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1161030641 is about 34073.8997034387. The cubic root of 1161030641 is about 1051.0286641690.

The spelling of 1161030641 in words is "one billion, one hundred sixty-one million, thirty thousand, six hundred forty-one".