70975519 has 2 divisors, whose sum is σ = 70975520. Its totient is φ = 70975518.

The previous prime is 70975517. The next prime is 70975589. The reversal of 70975519 is 91557907.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70975519 - 2¹ = 70975517 is a prime.

It is a super-2 number, since 2×70975519² = 10075048594638722, which contains 22 as substring.

Together with 70975517, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70975517) 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, 35487759 + 35487760.

It is an arithmetic number, because the mean of its divisors is an integer number (35487760).

Almost surely, 2^70975519 is an apocalyptic number.

70975519 is a deficient number, since it is larger than the sum of its proper divisors (1).

70975519 is an equidigital number, since it uses as much as digits as its factorization.

70975519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 99225, while the sum is 43.

The square root of 70975519 is about 8424.6969678440. The cubic root of 70975519 is about 414.0341772838.

The spelling of 70975519 in words is "seventy million, nine hundred seventy-five thousand, five hundred nineteen".