20701075 has 6 divisors (see below), whose sum is σ = 25669364. Its totient is φ = 16560840.

The previous prime is 20701073. The next prime is 20701097. The reversal of 20701075 is 57010702.

It is not a de Polignac number, because 20701075 - 2¹ = 20701073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20701073) 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 in 5 ways as a sum of consecutive naturals, for example, 413997 + ... + 414046.

Almost surely, 2^20701075 is an apocalyptic number.

20701075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20701075 is a deficient number, since it is larger than the sum of its proper divisors (4968289).

20701075 is an equidigital number, since it uses as much as digits as its factorization.

20701075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828053 (or 828048 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 20701075 is about 4549.8434038986. The cubic root of 20701075 is about 274.5770910093.

Adding to 20701075 its reverse (57010702), we get a palindrome (77711777).

The spelling of 20701075 in words is "twenty million, seven hundred one thousand, seventy-five".