1970246543 has 2 divisors, whose sum is σ = 1970246544. Its totient is φ = 1970246542.

The previous prime is 1970246507. The next prime is 1970246561. The reversal of 1970246543 is 3456420791.

It is a strong prime.

It is an emirp because it is prime and its reverse (3456420791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1970246543 - 2⁶ = 1970246479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1970246543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1970240543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985123271 + 985123272.

It is an arithmetic number, because the mean of its divisors is an integer number (985123272).

Almost surely, 2^1970246543 is an apocalyptic number.

1970246543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970246543 is an equidigital number, since it uses as much as digits as its factorization.

1970246543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 1970246543 is about 44387.4592987704. The cubic root of 1970246543 is about 1253.6419743527.

The spelling of 1970246543 in words is "one billion, nine hundred seventy million, two hundred forty-six thousand, five hundred forty-three".