431216461 has 8 divisors (see below), whose sum is σ = 464637600. Its totient is φ = 397831152.

The previous prime is 431216459. The next prime is 431216491. The reversal of 431216461 is 164612134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431216461 - 2¹ = 431216459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431216491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19386 + ... + 35188.

It is an arithmetic number, because the mean of its divisors is an integer number (58079700).

Almost surely, 2^431216461 is an apocalyptic number.

It is an amenable number.

431216461 is a deficient number, since it is larger than the sum of its proper divisors (33421139).

431216461 is a wasteful number, since it uses less digits than its factorization.

431216461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17915.

The product of its digits is 3456, while the sum is 28.

The square root of 431216461 is about 20765.7521173686. The cubic root of 431216461 is about 755.4953175647.

Adding to 431216461 its reverse (164612134), we get a palindrome (595828595).

The spelling of 431216461 in words is "four hundred thirty-one million, two hundred sixteen thousand, four hundred sixty-one".