1431412249 has 2 divisors, whose sum is σ = 1431412250. Its totient is φ = 1431412248.

The previous prime is 1431412243. The next prime is 1431412267. The reversal of 1431412249 is 9422141341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 757075225 + 674337024 = 27515^2 + 25968^2 .

It is an emirp because it is prime and its reverse (9422141341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1431412249 - 2¹⁹ = 1430887961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1431412249.

It is not a weakly prime, because it can be changed into another prime (1431412243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715706124 + 715706125.

It is an arithmetic number, because the mean of its divisors is an integer number (715706125).

Almost surely, 2^1431412249 is an apocalyptic number.

It is an amenable number.

1431412249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431412249 is an equidigital number, since it uses as much as digits as its factorization.

1431412249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 1431412249 is about 37834.0091584278. The cubic root of 1431412249 is about 1126.9939286680.

The spelling of 1431412249 in words is "one billion, four hundred thirty-one million, four hundred twelve thousand, two hundred forty-nine".