1014431993 has 2 divisors, whose sum is σ = 1014431994. Its totient is φ = 1014431992.

The previous prime is 1014431987. The next prime is 1014432047. The reversal of 1014431993 is 3991344101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 950303929 + 64128064 = 30827^2 + 8008^2 .

It is an emirp because it is prime and its reverse (3991344101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1014431993 - 2¹⁰ = 1014430969 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1014431903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507215996 + 507215997.

It is an arithmetic number, because the mean of its divisors is an integer number (507215997).

Almost surely, 2^1014431993 is an apocalyptic number.

It is an amenable number.

1014431993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1014431993 is an equidigital number, since it uses as much as digits as its factorization.

1014431993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1014431993 is about 31850.1490263390. The cubic root of 1014431993 is about 1004.7877056267.

The spelling of 1014431993 in words is "one billion, fourteen million, four hundred thirty-one thousand, nine hundred ninety-three".