431222045 has 8 divisors (see below), whose sum is σ = 527230296. Its totient is φ = 338468416.

The previous prime is 431222041. The next prime is 431222047. The reversal of 431222045 is 540222134.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 206611876 + 224610169 = 14374^2 + 14987^2 .

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 431222045 - 2² = 431222041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 431222045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431222041) 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, 813362 + ... + 813891.

It is an arithmetic number, because the mean of its divisors is an integer number (65903787).

Almost surely, 2^431222045 is an apocalyptic number.

It is an amenable number.

431222045 is a deficient number, since it is larger than the sum of its proper divisors (96008251).

431222045 is a wasteful number, since it uses less digits than its factorization.

431222045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627311.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 431222045 is about 20765.8865690825. The cubic root of 431222045 is about 755.4985786243.

Adding to 431222045 its reverse (540222134), we get a palindrome (971444179).

The spelling of 431222045 in words is "four hundred thirty-one million, two hundred twenty-two thousand, forty-five".