631488900146 has 8 divisors (see below), whose sum is σ = 1020097454124. Its totient is φ = 291456415440.

The previous prime is 631488900121. The next prime is 631488900149. The reversal of 631488900146 is 641009884136.

631488900146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 552659914921 + 78828985225 = 743411^2 + 280765^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 631488900094 and 631488900103.

It is not an unprimeable number, because it can be changed into a prime (631488900149) 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, 12144017285 + ... + 12144017336.

Almost surely, 2^631488900146 is an apocalyptic number.

631488900146 is a deficient number, since it is larger than the sum of its proper divisors (388608553978).

631488900146 is a wasteful number, since it uses less digits than its factorization.

631488900146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24288034636.

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 631488900146 in words is "six hundred thirty-one billion, four hundred eighty-eight million, nine hundred thousand, one hundred forty-six".