431455223430145 has 4 divisors (see below), whose sum is σ = 517746268116180. Its totient is φ = 345164178744112.

The previous prime is 431455223430097. The next prime is 431455223430227. The reversal of 431455223430145 is 541034322554134.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 182858574195441 + 248596649234704 = 13522521^2 + 15766948^2 .

It is a cyclic number.

It is not a de Polignac number, because 431455223430145 - 2³⁹ = 430905467616257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431455223430095 and 431455223430104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43145522343010 + ... + 43145522343019.

It is an arithmetic number, because the mean of its divisors is an integer number (129436567029045).

Almost surely, 2^{431455223430145} is an apocalyptic number.

It is an amenable number.

431455223430145 is a deficient number, since it is larger than the sum of its proper divisors (86291044686035).

431455223430145 is an equidigital number, since it uses as much as digits as its factorization.

431455223430145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86291044686034.

The product of its (nonzero) digits is 3456000, while the sum is 46.

Adding to 431455223430145 its reverse (541034322554134), we get a palindrome (972489545984279).

The spelling of 431455223430145 in words is "four hundred thirty-one trillion, four hundred fifty-five billion, two hundred twenty-three million, four hundred thirty thousand, one hundred forty-five".