1610264681 has 2 divisors, whose sum is σ = 1610264682. Its totient is φ = 1610264680.

The previous prime is 1610264563. The next prime is 1610264683. The reversal of 1610264681 is 1864620161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1245454681 + 364810000 = 35291^2 + 19100^2 .

It is an emirp because it is prime and its reverse (1864620161) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1610264681 is a prime.

It is a super-2 number, since 2×1610264681² = 5185904685752063522, which contains 22 as substring.

Together with 1610264683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1610264683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805132340 + 805132341.

It is an arithmetic number, because the mean of its divisors is an integer number (805132341).

Almost surely, 2^1610264681 is an apocalyptic number.

It is an amenable number.

1610264681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1610264681 is an equidigital number, since it uses as much as digits as its factorization.

1610264681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1610264681 is about 40128.1033815455. The cubic root of 1610264681 is about 1172.1029413418.

The spelling of 1610264681 in words is "one billion, six hundred ten million, two hundred sixty-four thousand, six hundred eighty-one".