1613264161 has 2 divisors, whose sum is σ = 1613264162. Its totient is φ = 1613264160.

The previous prime is 1613264089. The next prime is 1613264167. The reversal of 1613264161 is 1614623161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1218010000 + 395254161 = 34900^2 + 19881^2 .

It is a cyclic number.

It is not a de Polignac number, because 1613264161 - 2²³ = 1604875553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1613264167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806632080 + 806632081.

It is an arithmetic number, because the mean of its divisors is an integer number (806632081).

Almost surely, 2^1613264161 is an apocalyptic number.

It is an amenable number.

1613264161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613264161 is an equidigital number, since it uses as much as digits as its factorization.

1613264161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 1613264161 is about 40165.4598006795. The cubic root of 1613264161 is about 1172.8302583478.

The spelling of 1613264161 in words is "one billion, six hundred thirteen million, two hundred sixty-four thousand, one hundred sixty-one".