431225145 has 96 divisors (see below), whose sum is σ = 861404544. Its totient is φ = 197683200.

The previous prime is 431225117. The next prime is 431225161. The reversal of 431225145 is 541522134.

431225145 is a `hidden beast` number, since 431 + 225 + 1 + 4 + 5 = 666.

It is not a de Polignac number, because 431225145 - 2⁷ = 431225017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1302630 + ... + 1302960.

It is an arithmetic number, because the mean of its divisors is an integer number (8972964).

Almost surely, 2^431225145 is an apocalyptic number.

431225145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

431225145 is a deficient number, since it is larger than the sum of its proper divisors (430179399).

431225145 is a wasteful number, since it uses less digits than its factorization.

431225145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 500 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 431225145 is about 20765.9612105965. The cubic root of 431225145 is about 755.5003890141.

Adding to 431225145 its reverse (541522134), we get a palindrome (972747279).

The spelling of 431225145 in words is "four hundred thirty-one million, two hundred twenty-five thousand, one hundred forty-five".