631473545 has 8 divisors (see below), whose sum is σ = 766898496. Its totient is φ = 499092016.

The previous prime is 631473539. The next prime is 631473559. The reversal of 631473545 is 545374136.

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

It is a cyclic number.

It is not a de Polignac number, because 631473545 - 2⁶ = 631473481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 631473499 and 631473508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760397 + ... + 761226.

It is an arithmetic number, because the mean of its divisors is an integer number (95862312).

Almost surely, 2^631473545 is an apocalyptic number.

It is an amenable number.

631473545 is a deficient number, since it is larger than the sum of its proper divisors (135424951).

631473545 is a wasteful number, since it uses less digits than its factorization.

631473545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521711.

The product of its digits is 151200, while the sum is 38.

The square root of 631473545 is about 25129.1373707893. The cubic root of 631473545 is about 857.9297349921.

The spelling of 631473545 in words is "six hundred thirty-one million, four hundred seventy-three thousand, five hundred forty-five".