63162881 has 4 divisors (see below), whose sum is σ = 63307200. Its totient is φ = 63018564.

The previous prime is 63162857. The next prime is 63162929. The reversal of 63162881 is 18826136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63162881 - 2⁶ = 63162817 is a prime.

It is a super-2 number, since 2×63162881² = 7979099072440322, 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 (63162481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71501 + ... + 72378.

It is an arithmetic number, because the mean of its divisors is an integer number (15826800).

Almost surely, 2^63162881 is an apocalyptic number.

It is an amenable number.

63162881 is a deficient number, since it is larger than the sum of its proper divisors (144319).

63162881 is a wasteful number, since it uses less digits than its factorization.

63162881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144318.

The product of its digits is 13824, while the sum is 35.

The square root of 63162881 is about 7947.5078483761. The cubic root of 63162881 is about 398.2483425206.

The spelling of 63162881 in words is "sixty-three million, one hundred sixty-two thousand, eight hundred eighty-one".