4153215229981 has 2 divisors, whose sum is σ = 4153215229982. Its totient is φ = 4153215229980.

The previous prime is 4153215229913. The next prime is 4153215229993. The reversal of 4153215229981 is 1899225123514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3889395344025 + 263819885956 = 1972155^2 + 513634^2 .

It is a cyclic number.

It is not a de Polignac number, because 4153215229981 - 2¹¹ = 4153215227933 is a prime.

It is a super-2 number, since 2×4153215229981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4153215229901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2076607614990 + 2076607614991.

It is an arithmetic number, because the mean of its divisors is an integer number (2076607614991).

Almost surely, 2^{4153215229981} is an apocalyptic number.

It is an amenable number.

4153215229981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4153215229981 is an equidigital number, since it uses as much as digits as its factorization.

4153215229981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 52.

The spelling of 4153215229981 in words is "four trillion, one hundred fifty-three billion, two hundred fifteen million, two hundred twenty-nine thousand, nine hundred eighty-one".