63531123 has 4 divisors (see below), whose sum is σ = 84708168. Its totient is φ = 42354080.

The previous prime is 63531119. The next prime is 63531131. The reversal of 63531123 is 32113536.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 63531123 - 2² = 63531119 is a prime.

It is a super-2 number, since 2×63531123² = 8072407179282258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63531093 and 63531102.

It is not an unprimeable number, because it can be changed into a prime (63531103) 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, 10588518 + ... + 10588523.

It is an arithmetic number, because the mean of its divisors is an integer number (21177042).

Almost surely, 2^63531123 is an apocalyptic number.

63531123 is a deficient number, since it is larger than the sum of its proper divisors (21177045).

63531123 is a wasteful number, since it uses less digits than its factorization.

63531123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21177044.

The product of its digits is 1620, while the sum is 24.

The square root of 63531123 is about 7970.6413167323. The cubic root of 63531123 is about 399.0207776819.

Adding to 63531123 its reverse (32113536), we get a palindrome (95644659).

The spelling of 63531123 in words is "sixty-three million, five hundred thirty-one thousand, one hundred twenty-three".