631460145 has 16 divisors (see below), whose sum is σ = 1012101120. Its totient is φ = 336190464.

The previous prime is 631460131. The next prime is 631460149. The reversal of 631460145 is 541064136.

It is not a de Polignac number, because 631460145 - 2⁵ = 631460113 is a prime.

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 in 15 ways as a sum of consecutive naturals, for example, 27825 + ... + 45134.

It is an arithmetic number, because the mean of its divisors is an integer number (63256320).

Almost surely, 2^631460145 is an apocalyptic number.

It is an amenable number.

631460145 is a deficient number, since it is larger than the sum of its proper divisors (380640975).

631460145 is a wasteful number, since it uses less digits than its factorization.

631460145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73544.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 631460145 is about 25128.8707466133. The cubic root of 631460145 is about 857.9236664666.

The spelling of 631460145 in words is "six hundred thirty-one million, four hundred sixty thousand, one hundred forty-five".