20126975 has 12 divisors (see below), whose sum is σ = 27226680. Its totient is φ = 14637600.

The previous prime is 20126933. The next prime is 20126983. The reversal of 20126975 is 57962102.

It is not a de Polignac number, because 20126975 - 2¹⁴ = 20110591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36320 + ... + 36869.

It is an arithmetic number, because the mean of its divisors is an integer number (2268890).

Almost surely, 2^20126975 is an apocalyptic number.

20126975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20126975 is a deficient number, since it is larger than the sum of its proper divisors (7099705).

20126975 is a wasteful number, since it uses less digits than its factorization.

20126975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73210 (or 73205 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 20126975 is about 4486.3097307252. The cubic root of 20126975 is about 272.0149889015.

The spelling of 20126975 in words is "twenty million, one hundred twenty-six thousand, nine hundred seventy-five".