70189019 has 6 divisors (see below), whose sum is σ = 72693660. Its totient is φ = 67767896.

The previous prime is 70189003. The next prime is 70189043. The reversal of 70189019 is 91098107.

It is not a de Polignac number, because 70189019 - 2⁴ = 70189003 is a prime.

It is a super-3 number, since 3×70189019³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70189019.

It is not an unprimeable number, because it can be changed into a prime (70189069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40889 + ... + 42570.

It is an arithmetic number, because the mean of its divisors is an integer number (12115610).

Almost surely, 2^70189019 is an apocalyptic number.

70189019 is a deficient number, since it is larger than the sum of its proper divisors (2504641).

70189019 is an equidigital number, since it uses as much as digits as its factorization.

70189019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83517 (or 83488 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 70189019 is about 8377.8886958469. Note that the first 3 decimals coincide. The cubic root of 70189019 is about 412.4991495544.

The spelling of 70189019 in words is "seventy million, one hundred eighty-nine thousand, nineteen".