1431000947 has 2 divisors, whose sum is σ = 1431000948. Its totient is φ = 1431000946.

The previous prime is 1431000919. The next prime is 1431000973. The reversal of 1431000947 is 7490001341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1431000947 - 2²⁰ = 1429952371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1431008947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715500473 + 715500474.

It is an arithmetic number, because the mean of its divisors is an integer number (715500474).

Almost surely, 2^1431000947 is an apocalyptic number.

1431000947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431000947 is an equidigital number, since it uses as much as digits as its factorization.

1431000947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1431000947 is about 37828.5731557509. The cubic root of 1431000947 is about 1126.8859748479.

The spelling of 1431000947 in words is "one billion, four hundred thirty-one million, nine hundred forty-seven", and thus it is an aban number.