631253201 has 4 divisors (see below), whose sum is σ = 645933552. Its totient is φ = 616572852.

The previous prime is 631253191. The next prime is 631253209. The reversal of 631253201 is 102352136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-631253201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631253209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7340111 + ... + 7340196.

It is an arithmetic number, because the mean of its divisors is an integer number (161483388).

Almost surely, 2^631253201 is an apocalyptic number.

It is an amenable number.

631253201 is a deficient number, since it is larger than the sum of its proper divisors (14680351).

631253201 is a wasteful number, since it uses less digits than its factorization.

631253201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14680350.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 631253201 is about 25124.7527550024. The cubic root of 631253201 is about 857.8299357933.

The spelling of 631253201 in words is "six hundred thirty-one million, two hundred fifty-three thousand, two hundred one".