431630601 has 4 divisors (see below), whose sum is σ = 575507472. Its totient is φ = 287753732.

The previous prime is 431630599. The next prime is 431630609. The reversal of 431630601 is 106036134.

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 431630601 - 2¹ = 431630599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431630609) 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 3 ways as a sum of consecutive naturals, for example, 71938431 + ... + 71938436.

It is an arithmetic number, because the mean of its divisors is an integer number (143876868).

Almost surely, 2^431630601 is an apocalyptic number.

It is an amenable number.

431630601 is a deficient number, since it is larger than the sum of its proper divisors (143876871).

431630601 is a wasteful number, since it uses less digits than its factorization.

431630601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143876870.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 431630601 is about 20775.7214315171. The cubic root of 431630601 is about 755.7370992444.

Adding to 431630601 its reverse (106036134), we get a palindrome (537666735).

The spelling of 431630601 in words is "four hundred thirty-one million, six hundred thirty thousand, six hundred one".