631421273 has 8 divisors (see below), whose sum is σ = 723341760. Its totient is φ = 539930160.

The previous prime is 631421251. The next prime is 631421291. The reversal of 631421273 is 372124136.

It is a happy number.

631421273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 631421273 - 2¹⁸ = 631159129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (631421173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104183 + ... + 110076.

It is an arithmetic number, because the mean of its divisors is an integer number (90417720).

Almost surely, 2^631421273 is an apocalyptic number.

It is an amenable number.

631421273 is a deficient number, since it is larger than the sum of its proper divisors (91920487).

631421273 is a wasteful number, since it uses less digits than its factorization.

631421273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214687.

The product of its digits is 6048, while the sum is 29.

The square root of 631421273 is about 25128.0972817283. The cubic root of 631421273 is about 857.9060618227.

The spelling of 631421273 in words is "six hundred thirty-one million, four hundred twenty-one thousand, two hundred seventy-three".