1613030761 has 2 divisors, whose sum is σ = 1613030762. Its totient is φ = 1613030760.

The previous prime is 1613030759. The next prime is 1613030803. The reversal of 1613030761 is 1670303161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1182053161 + 430977600 = 34381^2 + 20760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1613030761 - 2¹ = 1613030759 is a prime.

Together with 1613030759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1613033761) 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, 806515380 + 806515381.

It is an arithmetic number, because the mean of its divisors is an integer number (806515381).

Almost surely, 2^1613030761 is an apocalyptic number.

It is an amenable number.

1613030761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613030761 is an equidigital number, since it uses as much as digits as its factorization.

1613030761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1613030761 is about 40162.5542140935. The cubic root of 1613030761 is about 1172.7736956366.

The spelling of 1613030761 in words is "one billion, six hundred thirteen million, thirty thousand, seven hundred sixty-one".