631348451 has 4 divisors (see below), whose sum is σ = 631467312. Its totient is φ = 631229592.

The previous prime is 631348409. The next prime is 631348469. The reversal of 631348451 is 154843136.

631348451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 631348451 - 2¹⁰ = 631347427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631348051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51071 + ... + 62216.

It is an arithmetic number, because the mean of its divisors is an integer number (157866828).

Almost surely, 2^631348451 is an apocalyptic number.

631348451 is a deficient number, since it is larger than the sum of its proper divisors (118861).

631348451 is a wasteful number, since it uses less digits than its factorization.

631348451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118860.

The product of its digits is 34560, while the sum is 35.

The square root of 631348451 is about 25126.6482245444. The cubic root of 631348451 is about 857.8730797024.

The spelling of 631348451 in words is "six hundred thirty-one million, three hundred forty-eight thousand, four hundred fifty-one".