431421241 has 4 divisors (see below), whose sum is σ = 437860432. Its totient is φ = 424982052.

The previous prime is 431421227. The next prime is 431421259. The reversal of 431421241 is 142124134.

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, and also an emirpimes, since its reverse is a distinct semiprime: 142124134 = 2 ⋅71062067.

It is a cyclic number.

It is not a de Polignac number, because 431421241 - 2⁵ = 431421209 is a prime.

It is a super-2 number, since 2×431421241² = 372248574371960162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431428241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3219495 + ... + 3219628.

It is an arithmetic number, because the mean of its divisors is an integer number (109465108).

Almost surely, 2^431421241 is an apocalyptic number.

It is an amenable number.

431421241 is a deficient number, since it is larger than the sum of its proper divisors (6439191).

431421241 is an equidigital number, since it uses as much as digits as its factorization.

431421241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6439190.

The product of its digits is 768, while the sum is 22.

The square root of 431421241 is about 20770.6822468594. The cubic root of 431421241 is about 755.6148908042.

Adding to 431421241 its reverse (142124134), we get a palindrome (573545375).

The spelling of 431421241 in words is "four hundred thirty-one million, four hundred twenty-one thousand, two hundred forty-one".