631107601 has 4 divisors (see below), whose sum is σ = 641804400. Its totient is φ = 620410804.

The previous prime is 631107583. The next prime is 631107661. The reversal of 631107601 is 106701136.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 631107601 - 2⁹ = 631107089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631107661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5348311 + ... + 5348428.

It is an arithmetic number, because the mean of its divisors is an integer number (160451100).

Almost surely, 2^631107601 is an apocalyptic number.

It is an amenable number.

631107601 is a deficient number, since it is larger than the sum of its proper divisors (10696799).

631107601 is a wasteful number, since it uses less digits than its factorization.

631107601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10696798.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 631107601 is about 25121.8550469507. The cubic root of 631107601 is about 857.7639772406.

Adding to 631107601 its reverse (106701136), we get a palindrome (737808737).

The spelling of 631107601 in words is "six hundred thirty-one million, one hundred seven thousand, six hundred one".