431126089 has 2 divisors, whose sum is σ = 431126090. Its totient is φ = 431126088.

The previous prime is 431126077. The next prime is 431126141. The reversal of 431126089 is 980621134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377719225 + 53406864 = 19435^2 + 7308^2 .

It is a cyclic number.

It is not a de Polignac number, because 431126089 - 2¹⁵ = 431093321 is a prime.

It is equal to p_22904728 and since 431126089 and 22904728 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (431126489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215563044 + 215563045.

It is an arithmetic number, because the mean of its divisors is an integer number (215563045).

Almost surely, 2^431126089 is an apocalyptic number.

It is an amenable number.

431126089 is a deficient number, since it is larger than the sum of its proper divisors (1).

431126089 is an equidigital number, since it uses as much as digits as its factorization.

431126089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 431126089 is about 20763.5760166692. The cubic root of 431126089 is about 755.4425363445.

The spelling of 431126089 in words is "four hundred thirty-one million, one hundred twenty-six thousand, eighty-nine".