431530513 has 8 divisors (see below), whose sum is σ = 434010240. Its totient is φ = 429056880.

The previous prime is 431530511. The next prime is 431530523. The reversal of 431530513 is 315035134.

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 431530513 - 2¹ = 431530511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431530511) 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, 237378 + ... + 239188.

It is an arithmetic number, because the mean of its divisors is an integer number (54251280).

Almost surely, 2^431530513 is an apocalyptic number.

It is an amenable number.

431530513 is a deficient number, since it is larger than the sum of its proper divisors (2479727).

431530513 is a wasteful number, since it uses less digits than its factorization.

431530513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 431530513 is about 20773.3125187102. The cubic root of 431530513 is about 755.6786804159.

Adding to 431530513 its reverse (315035134), we get a palindrome (746565647).

The spelling of 431530513 in words is "four hundred thirty-one million, five hundred thirty thousand, five hundred thirteen".