631401116 has 6 divisors (see below), whose sum is σ = 1104951960. Its totient is φ = 315700556.

The previous prime is 631401109. The next prime is 631401119. The reversal of 631401116 is 611104136.

It is a junction number, because it is equal to n+sod(n) for n = 631401091 and 631401100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631401119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78925136 + ... + 78925143.

It is an arithmetic number, because the mean of its divisors is an integer number (184158660).

Almost surely, 2^631401116 is an apocalyptic number.

It is an amenable number.

631401116 is a deficient number, since it is larger than the sum of its proper divisors (473550844).

631401116 is a wasteful number, since it uses less digits than its factorization.

631401116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157850283 (or 157850281 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 631401116 is about 25127.6961936426. The cubic root of 631401116 is about 857.8969326843.

The spelling of 631401116 in words is "six hundred thirty-one million, four hundred one thousand, one hundred sixteen".