1613601853 has 2 divisors, whose sum is σ = 1613601854. Its totient is φ = 1613601852.

The previous prime is 1613601851. The next prime is 1613601859. The reversal of 1613601853 is 3581063161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1217870404 + 395731449 = 34898^2 + 19893^2 .

It is a cyclic number.

It is not a de Polignac number, because 1613601853 - 2¹ = 1613601851 is a prime.

Together with 1613601851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1613601851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806800926 + 806800927.

It is an arithmetic number, because the mean of its divisors is an integer number (806800927).

Almost surely, 2^1613601853 is an apocalyptic number.

It is an amenable number.

1613601853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613601853 is an equidigital number, since it uses as much as digits as its factorization.

1613601853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1613601853 is about 40169.6633418803. The cubic root of 1613601853 is about 1172.9120857744.

The spelling of 1613601853 in words is "one billion, six hundred thirteen million, six hundred one thousand, eight hundred fifty-three".