631146071 has 6 divisors (see below), whose sum is σ = 637467216. Its totient is φ = 624887000.

The previous prime is 631146031. The next prime is 631146119. The reversal of 631146071 is 170641136.

It is not a de Polignac number, because 631146071 - 2¹⁸ = 630883927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631146011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20735 + ... + 41136.

It is an arithmetic number, because the mean of its divisors is an integer number (106244536).

Almost surely, 2^631146071 is an apocalyptic number.

631146071 is a deficient number, since it is larger than the sum of its proper divisors (6321145).

631146071 is an equidigital number, since it uses as much as digits as its factorization.

631146071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62073 (or 61972 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 631146071 is about 25122.6207032626. The cubic root of 631146071 is about 857.7814055997.

The spelling of 631146071 in words is "six hundred thirty-one million, one hundred forty-six thousand, seventy-one".