631074745 has 16 divisors (see below), whose sum is σ = 871797888. Its totient is φ = 429575040.

The previous prime is 631074739. The next prime is 631074761. The reversal of 631074745 is 547470136.

It is not a de Polignac number, because 631074745 - 2¹⁹ = 630550457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61011 + ... + 70600.

It is an arithmetic number, because the mean of its divisors is an integer number (54487368).

Almost surely, 2^631074745 is an apocalyptic number.

It is an amenable number.

631074745 is a deficient number, since it is larger than the sum of its proper divisors (240723143).

631074745 is a wasteful number, since it uses less digits than its factorization.

631074745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131760.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 631074745 is about 25121.2011058389. The cubic root of 631074745 is about 857.7490916742.

The spelling of 631074745 in words is "six hundred thirty-one million, seventy-four thousand, seven hundred forty-five".