431488249 has 2 divisors, whose sum is σ = 431488250. Its totient is φ = 431488248.

The previous prime is 431488243. The next prime is 431488259. The reversal of 431488249 is 942884134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426835600 + 4652649 = 20660^2 + 2157^2 .

It is a cyclic number.

It is not a de Polignac number, because 431488249 - 2⁵ = 431488217 is a prime.

It is not a weakly prime, because it can be changed into another prime (431488243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215744124 + 215744125.

It is an arithmetic number, because the mean of its divisors is an integer number (215744125).

Almost surely, 2^431488249 is an apocalyptic number.

It is an amenable number.

431488249 is a deficient number, since it is larger than the sum of its proper divisors (1).

431488249 is an equidigital number, since it uses as much as digits as its factorization.

431488249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 43.

The square root of 431488249 is about 20772.2952270566. The cubic root of 431488249 is about 755.6540092780.

The spelling of 431488249 in words is "four hundred thirty-one million, four hundred eighty-eight thousand, two hundred forty-nine".