3481641521 has 2 divisors, whose sum is σ = 3481641522. Its totient is φ = 3481641520.

The previous prime is 3481641511. The next prime is 3481641523. The reversal of 3481641521 is 1251461843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2327001121 + 1154640400 = 48239^2 + 33980^2 .

It is an emirp because it is prime and its reverse (1251461843) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3481641521 is a prime.

Together with 3481641523, 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 (3481641523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1740820760 + 1740820761.

It is an arithmetic number, because the mean of its divisors is an integer number (1740820761).

Almost surely, 2^3481641521 is an apocalyptic number.

It is an amenable number.

3481641521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3481641521 is an equidigital number, since it uses as much as digits as its factorization.

3481641521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 35.

The square root of 3481641521 is about 59005.4363681856. The cubic root of 3481641521 is about 1515.6352045232.

The spelling of 3481641521 in words is "three billion, four hundred eighty-one million, six hundred forty-one thousand, five hundred twenty-one".