5182153981 has 2 divisors, whose sum is σ = 5182153982. Its totient is φ = 5182153980.

The previous prime is 5182153957. The next prime is 5182154039. The reversal of 5182153981 is 1893512815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5056489881 + 125664100 = 71109^2 + 11210^2 .

It is a cyclic number.

It is not a de Polignac number, because 5182153981 - 2⁷ = 5182153853 is a prime.

It is a super-2 number, since 2×5182153981² = 53709439765588296722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5182153481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2591076990 + 2591076991.

It is an arithmetic number, because the mean of its divisors is an integer number (2591076991).

Almost surely, 2^5182153981 is an apocalyptic number.

It is an amenable number.

5182153981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5182153981 is an equidigital number, since it uses as much as digits as its factorization.

5182153981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 43.

The square root of 5182153981 is about 71987.1792821472. The cubic root of 5182153981 is about 1730.4940263287.

The spelling of 5182153981 in words is "five billion, one hundred eighty-two million, one hundred fifty-three thousand, nine hundred eighty-one".