1790291161 has 2 divisors, whose sum is σ = 1790291162. Its totient is φ = 1790291160.

The previous prime is 1790291143. The next prime is 1790291171. The reversal of 1790291161 is 1611920971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1114291161 + 676000000 = 33381^2 + 26000^2 .

It is an emirp because it is prime and its reverse (1611920971) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1790291161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1790291161.

It is not a weakly prime, because it can be changed into another prime (1790291141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 895145580 + 895145581.

It is an arithmetic number, because the mean of its divisors is an integer number (895145581).

Almost surely, 2^1790291161 is an apocalyptic number.

It is an amenable number.

1790291161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1790291161 is an equidigital number, since it uses as much as digits as its factorization.

1790291161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 37.

The square root of 1790291161 is about 42311.8323994601. The cubic root of 1790291161 is about 1214.2493765517.

The spelling of 1790291161 in words is "one billion, seven hundred ninety million, two hundred ninety-one thousand, one hundred sixty-one".