1613264687 has 2 divisors, whose sum is σ = 1613264688. Its totient is φ = 1613264686.

The previous prime is 1613264663. The next prime is 1613264701. The reversal of 1613264687 is 7864623161.

It is a strong prime.

It is an emirp because it is prime and its reverse (7864623161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1613264687 - 2¹⁶ = 1613199151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1613234687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806632343 + 806632344.

It is an arithmetic number, because the mean of its divisors is an integer number (806632344).

Almost surely, 2^1613264687 is an apocalyptic number.

1613264687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613264687 is an equidigital number, since it uses as much as digits as its factorization.

1613264687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 1613264687 is about 40165.4663485935. The cubic root of 1613264687 is about 1172.8303858137.

The spelling of 1613264687 in words is "one billion, six hundred thirteen million, two hundred sixty-four thousand, six hundred eighty-seven".