431136653 has 2 divisors, whose sum is σ = 431136654. Its totient is φ = 431136652.

The previous prime is 431136631. The next prime is 431136661. The reversal of 431136653 is 356631134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406949929 + 24186724 = 20173^2 + 4918^2 .

It is a cyclic number.

It is not a de Polignac number, because 431136653 - 2¹² = 431132557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431133653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215568326 + 215568327.

It is an arithmetic number, because the mean of its divisors is an integer number (215568327).

Almost surely, 2^431136653 is an apocalyptic number.

It is an amenable number.

431136653 is a deficient number, since it is larger than the sum of its proper divisors (1).

431136653 is an equidigital number, since it uses as much as digits as its factorization.

431136653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 431136653 is about 20763.8304028905. The cubic root of 431136653 is about 755.4487065655.

Adding to 431136653 its reverse (356631134), we get a palindrome (787767787).

The spelling of 431136653 in words is "four hundred thirty-one million, one hundred thirty-six thousand, six hundred fifty-three".