70181393 has 2 divisors, whose sum is σ = 70181394. Its totient is φ = 70181392.

The previous prime is 70181359. The next prime is 70181413. The reversal of 70181393 is 39318107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47789569 + 22391824 = 6913^2 + 4732^2 .

It is a cyclic number.

It is not a de Polignac number, because 70181393 - 2⁶ = 70181329 is a prime.

It is a super-3 number, since 3×70181393³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (70181323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35090696 + 35090697.

It is an arithmetic number, because the mean of its divisors is an integer number (35090697).

Almost surely, 2^70181393 is an apocalyptic number.

It is an amenable number.

70181393 is a deficient number, since it is larger than the sum of its proper divisors (1).

70181393 is an equidigital number, since it uses as much as digits as its factorization.

70181393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 70181393 is about 8377.4335568836. The cubic root of 70181393 is about 412.4842097414.

The spelling of 70181393 in words is "seventy million, one hundred eighty-one thousand, three hundred ninety-three".