431315513149 has 2 divisors, whose sum is σ = 431315513150. Its totient is φ = 431315513148.

The previous prime is 431315513113. The next prime is 431315513173. The reversal of 431315513149 is 941315513134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250875765625 + 180439747524 = 500875^2 + 424782^2 .

It is a cyclic number.

It is not a de Polignac number, because 431315513149 - 2²¹ = 431313415997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431385513149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215657756574 + 215657756575.

It is an arithmetic number, because the mean of its divisors is an integer number (215657756575).

Almost surely, 2^431315513149 is an apocalyptic number.

It is an amenable number.

431315513149 is a deficient number, since it is larger than the sum of its proper divisors (1).

431315513149 is an equidigital number, since it uses as much as digits as its factorization.

431315513149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The spelling of 431315513149 in words is "four hundred thirty-one billion, three hundred fifteen million, five hundred thirteen thousand, one hundred forty-nine".