631461001 has 8 divisors (see below), whose sum is σ = 634785984. Its totient is φ = 628144560.

The previous prime is 631460987. The next prime is 631461037. The reversal of 631461001 is 100164136.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 631461001 - 2⁵ = 631460969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631461071) 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, 187906 + ... + 191236.

It is an arithmetic number, because the mean of its divisors is an integer number (79348248).

Almost surely, 2^631461001 is an apocalyptic number.

It is an amenable number.

631461001 is a deficient number, since it is larger than the sum of its proper divisors (3324983).

631461001 is a wasteful number, since it uses less digits than its factorization.

631461001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 631461001 is about 25128.8877788095. The cubic root of 631461001 is about 857.9240541302.

The spelling of 631461001 in words is "six hundred thirty-one million, four hundred sixty-one thousand, one".