20975127 has 16 divisors (see below), whose sum is σ = 30569472. Its totient is φ = 12735360.

The previous prime is 20975117. The next prime is 20975131. The reversal of 20975127 is 72157902.

It is not a de Polignac number, because 20975127 - 2⁶ = 20975063 is a prime.

It is a super-2 number, since 2×20975127² = 879911905332258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20975117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5053 + ... + 8214.

It is an arithmetic number, because the mean of its divisors is an integer number (1910592).

Almost surely, 2^20975127 is an apocalyptic number.

20975127 is a deficient number, since it is larger than the sum of its proper divisors (9594345).

20975127 is a wasteful number, since it uses less digits than its factorization.

20975127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13318.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 20975127 is about 4579.8610240923. The cubic root of 20975127 is about 275.7834496512.

The spelling of 20975127 in words is "twenty million, nine hundred seventy-five thousand, one hundred twenty-seven".