4985153081 has 4 divisors (see below), whose sum is σ = 5066876964. Its totient is φ = 4903429200.

The previous prime is 4985153077. The next prime is 4985153093. The reversal of 4985153081 is 1803515894.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 246207481 + 4738945600 = 15691^2 + 68840^2 .

It is a cyclic number.

It is not a de Polignac number, because 4985153081 - 2² = 4985153077 is a prime.

It is a super-2 number, since 2×4985153081² = 49703502482007585122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4985153011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40861850 + ... + 40861971.

It is an arithmetic number, because the mean of its divisors is an integer number (1266719241).

Almost surely, 2^4985153081 is an apocalyptic number.

It is an amenable number.

4985153081 is a deficient number, since it is larger than the sum of its proper divisors (81723883).

4985153081 is an equidigital number, since it uses as much as digits as its factorization.

4985153081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81723882.

The product of its (nonzero) digits is 172800, while the sum is 44.

The square root of 4985153081 is about 70605.6164975563. The cubic root of 4985153081 is about 1708.2817436974.

The spelling of 4985153081 in words is "four billion, nine hundred eighty-five million, one hundred fifty-three thousand, eighty-one".