31504503146 has 16 divisors (see below), whose sum is σ = 48553295400. Its totient is φ = 15320410560.

The previous prime is 31504503131. The next prime is 31504503181. The reversal of 31504503146 is 64130540513.

It can be written as a sum of positive squares in 4 ways, for example, as 31386019921 + 118483225 = 177161^2 + 10885^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105116 + ... + 272136.

Almost surely, 2^31504503146 is an apocalyptic number.

31504503146 is a deficient number, since it is larger than the sum of its proper divisors (17048792254).

31504503146 is a wasteful number, since it uses less digits than its factorization.

31504503146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169609.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 31504503146 in words is "thirty-one billion, five hundred four million, five hundred three thousand, one hundred forty-six".