20290127 has 12 divisors (see below), whose sum is σ = 24019800. Its totient is φ = 17025360.

The previous prime is 20290099. The next prime is 20290133. The reversal of 20290127 is 72109202.

It is not a de Polignac number, because 20290127 - 2¹⁰ = 20289103 is a prime.

It is a super-2 number, since 2×20290127² = 823378507352258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20290147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4877 + ... + 8022.

It is an arithmetic number, because the mean of its divisors is an integer number (2001650).

Almost surely, 2^20290127 is an apocalyptic number.

20290127 is a deficient number, since it is larger than the sum of its proper divisors (3729673).

20290127 is a wasteful number, since it uses less digits than its factorization.

20290127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12934 (or 12923 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 20290127 is about 4504.4563489948. The cubic root of 20290127 is about 272.7480086490.

Adding to 20290127 its reverse (72109202), we get a palindrome (92399329).

The spelling of 20290127 in words is "twenty million, two hundred ninety thousand, one hundred twenty-seven".