70745573 has 2 divisors, whose sum is σ = 70745574. Its totient is φ = 70745572.

The previous prime is 70745561. The next prime is 70745581. The reversal of 70745573 is 37554707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35438209 + 35307364 = 5953^2 + 5942^2 .

It is a cyclic number.

It is not a de Polignac number, because 70745573 - 2²⁴ = 53968357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70745533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35372786 + 35372787.

It is an arithmetic number, because the mean of its divisors is an integer number (35372787).

Almost surely, 2^70745573 is an apocalyptic number.

It is an amenable number.

70745573 is a deficient number, since it is larger than the sum of its proper divisors (1).

70745573 is an equidigital number, since it uses as much as digits as its factorization.

70745573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102900, while the sum is 38.

The square root of 70745573 is about 8411.0387586790. The cubic root of 70745573 is about 413.5865651817.

The spelling of 70745573 in words is "seventy million, seven hundred forty-five thousand, five hundred seventy-three".