631460198 has 4 divisors (see below), whose sum is σ = 947190300. Its totient is φ = 315730098.

The previous prime is 631460197. The next prime is 631460209. The reversal of 631460198 is 891064136.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631460197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157865048 + ... + 157865051.

It is an arithmetic number, because the mean of its divisors is an integer number (236797575).

Almost surely, 2^631460198 is an apocalyptic number.

631460198 is a deficient number, since it is larger than the sum of its proper divisors (315730102).

631460198 is a wasteful number, since it uses less digits than its factorization.

631460198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315730101.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 631460198 is about 25128.8718011772. The cubic root of 631460198 is about 857.9236904692.

The spelling of 631460198 in words is "six hundred thirty-one million, four hundred sixty thousand, one hundred ninety-eight".