63099081 has 12 divisors (see below), whose sum is σ = 94519152. Its totient is φ = 42065892.

The previous prime is 63099037. The next prime is 63099137. The reversal of 63099081 is 18099036.

It is not a de Polignac number, because 63099081 - 2¹³ = 63090889 is a prime.

It is a super-2 number, since 2×63099081² = 7962988046089122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63099031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129591 + ... + 130076.

It is an arithmetic number, because the mean of its divisors is an integer number (7876596).

Almost surely, 2^63099081 is an apocalyptic number.

It is an amenable number.

63099081 is a deficient number, since it is larger than the sum of its proper divisors (31420071).

63099081 is an equidigital number, since it uses as much as digits as its factorization.

63099081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259682 (or 259670 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 63099081 is about 7943.4929974162. The cubic root of 63099081 is about 398.1142088676.

The spelling of 63099081 in words is "sixty-three million, ninety-nine thousand, eighty-one".