631460146 has 4 divisors (see below), whose sum is σ = 947190222. Its totient is φ = 315730072.

The previous prime is 631460131. The next prime is 631460149. The reversal of 631460146 is 641064136.

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

It can be written as a sum of positive squares in only one way, i.e., 629457921 + 2002225 = 25089^2 + 1415^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (631460149) 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 as a sum of consecutive naturals, namely, 157865035 + ... + 157865038.

Almost surely, 2^631460146 is an apocalyptic number.

631460146 is a deficient number, since it is larger than the sum of its proper divisors (315730076).

631460146 is a wasteful number, since it uses less digits than its factorization.

631460146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315730075.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 631460146 is about 25128.8707665108. The cubic root of 631460146 is about 857.9236669195.

The spelling of 631460146 in words is "six hundred thirty-one million, four hundred sixty thousand, one hundred forty-six".