70542943 has 2 divisors, whose sum is σ = 70542944. Its totient is φ = 70542942.

The previous prime is 70542929. The next prime is 70543003. The reversal of 70542943 is 34924507.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70542943 - 2⁹ = 70542431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70542899 and 70542908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70542343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35271471 + 35271472.

It is an arithmetic number, because the mean of its divisors is an integer number (35271472).

Almost surely, 2^70542943 is an apocalyptic number.

70542943 is a deficient number, since it is larger than the sum of its proper divisors (1).

70542943 is an equidigital number, since it uses as much as digits as its factorization.

70542943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 70542943 is about 8398.9846410147. The cubic root of 70542943 is about 413.1913216756.

The spelling of 70542943 in words is "seventy million, five hundred forty-two thousand, nine hundred forty-three".