1613958113 has 2 divisors, whose sum is σ = 1613958114. Its totient is φ = 1613958112.

The previous prime is 1613958103. The next prime is 1613958131. The reversal of 1613958113 is 3118593161.

Together with next prime (1613958131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1235733409 + 378224704 = 35153^2 + 19448^2 .

It is a cyclic number.

It is not a de Polignac number, because 1613958113 - 2⁸ = 1613957857 is a prime.

It is not a weakly prime, because it can be changed into another prime (1613958103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806979056 + 806979057.

It is an arithmetic number, because the mean of its divisors is an integer number (806979057).

Almost surely, 2^1613958113 is an apocalyptic number.

It is an amenable number.

1613958113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613958113 is an equidigital number, since it uses as much as digits as its factorization.

1613958113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 38.

The square root of 1613958113 is about 40174.0975380904. The cubic root of 1613958113 is about 1172.9984001091.

The spelling of 1613958113 in words is "one billion, six hundred thirteen million, nine hundred fifty-eight thousand, one hundred thirteen".