1431534109 has 2 divisors, whose sum is σ = 1431534110. Its totient is φ = 1431534108.

The previous prime is 1431534001. The next prime is 1431534179. The reversal of 1431534109 is 9014351341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722803225 + 708730884 = 26885^2 + 26622^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431534109 - 2⁷ = 1431533981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431534179) 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, 715767054 + 715767055.

It is an arithmetic number, because the mean of its divisors is an integer number (715767055).

Almost surely, 2^1431534109 is an apocalyptic number.

It is an amenable number.

1431534109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431534109 is an equidigital number, since it uses as much as digits as its factorization.

1431534109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1431534109 is about 37835.6195799672. The cubic root of 1431534109 is about 1127.0259091085.

The spelling of 1431534109 in words is "one billion, four hundred thirty-one million, five hundred thirty-four thousand, one hundred nine".