431244145 has 8 divisors (see below), whose sum is σ = 518603904. Its totient is φ = 344254704.

The previous prime is 431244127. The next prime is 431244161. The reversal of 431244145 is 541442134.

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 431244145 - 2¹⁵ = 431211377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90009 + ... + 94678.

It is an arithmetic number, because the mean of its divisors is an integer number (64825488).

Almost surely, 2^431244145 is an apocalyptic number.

It is an amenable number.

431244145 is a deficient number, since it is larger than the sum of its proper divisors (87359759).

431244145 is a wasteful number, since it uses less digits than its factorization.

431244145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185159.

The product of its digits is 7680, while the sum is 28.

The square root of 431244145 is about 20766.4186849827. The cubic root of 431244145 is about 755.5114847620.

Adding to 431244145 its reverse (541442134), we get a palindrome (972686279).

The spelling of 431244145 in words is "four hundred thirty-one million, two hundred forty-four thousand, one hundred forty-five".