20101675 has 24 divisors (see below), whose sum is σ = 27623232. Its totient is φ = 14388000.

The previous prime is 20101673. The next prime is 20101709. The reversal of 20101675 is 57610102.

It is not a de Polignac number, because 20101675 - 2¹ = 20101673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17880 + ... + 18970.

It is an arithmetic number, because the mean of its divisors is an integer number (1150968).

Almost surely, 2^20101675 is an apocalyptic number.

20101675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20101675 is a deficient number, since it is larger than the sum of its proper divisors (7521557).

20101675 is a wasteful number, since it uses less digits than its factorization.

20101675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 20101675 is about 4483.4891546651. The cubic root of 20101675 is about 271.9009650632.

Adding to 20101675 its reverse (57610102), we get a palindrome (77711777).

The spelling of 20101675 in words is "twenty million, one hundred one thousand, six hundred seventy-five".