631253199 has 8 divisors (see below), whose sum is σ = 842634160. Its totient is φ = 420353856.

The previous prime is 631253191. The next prime is 631253209. The reversal of 631253199 is 991352136.

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

It is not a de Polignac number, because 631253199 - 2³ = 631253191 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 (631253191) by changing a digit.

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, 117334 + ... + 122595.

It is an arithmetic number, because the mean of its divisors is an integer number (105329270).

Almost surely, 2^631253199 is an apocalyptic number.

631253199 is a deficient number, since it is larger than the sum of its proper divisors (211380961).

631253199 is a wasteful number, since it uses less digits than its factorization.

631253199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240809.

The product of its digits is 43740, while the sum is 39.

The square root of 631253199 is about 25124.7527152010. The cubic root of 631253199 is about 857.8299348874.

The spelling of 631253199 in words is "six hundred thirty-one million, two hundred fifty-three thousand, one hundred ninety-nine".