3185131601 has 2 divisors, whose sum is σ = 3185131602. Its totient is φ = 3185131600.

The previous prime is 3185131591. The next prime is 3185131613. The reversal of 3185131601 is 1061315813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1739307025 + 1445824576 = 41705^2 + 38024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3185131601 is a prime.

It is not a weakly prime, because it can be changed into another prime (3185131501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1592565800 + 1592565801.

It is an arithmetic number, because the mean of its divisors is an integer number (1592565801).

Almost surely, 2^3185131601 is an apocalyptic number.

It is an amenable number.

3185131601 is a deficient number, since it is larger than the sum of its proper divisors (1).

3185131601 is an equidigital number, since it uses as much as digits as its factorization.

3185131601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 3185131601 is about 56436.9701614110. The cubic root of 3185131601 is about 1471.3267367068.

The spelling of 3185131601 in words is "three billion, one hundred eighty-five million, one hundred thirty-one thousand, six hundred one".