1016511493 has 2 divisors, whose sum is σ = 1016511494. Its totient is φ = 1016511492.

The previous prime is 1016511487. The next prime is 1016511499. The reversal of 1016511493 is 3941156101.

1016511493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (1016511487) and next prime (1016511499).

It can be written as a sum of positive squares in only one way, i.e., 832149409 + 184362084 = 28847^2 + 13578^2 .

It is a cyclic number.

It is not a de Polignac number, because 1016511493 - 2²¹ = 1014414341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1016511499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508255746 + 508255747.

It is an arithmetic number, because the mean of its divisors is an integer number (508255747).

Almost surely, 2^1016511493 is an apocalyptic number.

It is an amenable number.

1016511493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016511493 is an equidigital number, since it uses as much as digits as its factorization.

1016511493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 1016511493 is about 31882.7773727447. Note that the first 3 decimals coincide. The cubic root of 1016511493 is about 1005.4738136937.

Adding to 1016511493 its reverse (3941156101), we get a palindrome (4957667594).

The spelling of 1016511493 in words is "one billion, sixteen million, five hundred eleven thousand, four hundred ninety-three".