1016454643 has 2 divisors, whose sum is σ = 1016454644. Its totient is φ = 1016454642.

The previous prime is 1016454641. The next prime is 1016454653. The reversal of 1016454643 is 3464546101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1016454643 - 2¹ = 1016454641 is a prime.

Together with 1016454641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1016454599 and 1016454608.

It is not a weakly prime, because it can be changed into another prime (1016454641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508227321 + 508227322.

It is an arithmetic number, because the mean of its divisors is an integer number (508227322).

Almost surely, 2^1016454643 is an apocalyptic number.

1016454643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016454643 is an equidigital number, since it uses as much as digits as its factorization.

1016454643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1016454643 is about 31881.8858131071. The cubic root of 1016454643 is about 1005.4550691107.

The spelling of 1016454643 in words is "one billion, sixteen million, four hundred fifty-four thousand, six hundred forty-three".