31028127 has 16 divisors (see below), whose sum is σ = 46491648. Its totient is φ = 18263520.

The previous prime is 31028093. The next prime is 31028143. The reversal of 31028127 is 72182013.

It is not a de Polignac number, because 31028127 - 2¹⁵ = 30995359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31028097 and 31028106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31028827) 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 15 ways as a sum of consecutive naturals, for example, 16399 + ... + 18192.

It is an arithmetic number, because the mean of its divisors is an integer number (2905728).

Almost surely, 2^31028127 is an apocalyptic number.

31028127 is a deficient number, since it is larger than the sum of its proper divisors (15463521).

31028127 is a wasteful number, since it uses less digits than its factorization.

31028127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34630.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 31028127 is about 5570.2896693081. The cubic root of 31028127 is about 314.2330447059.

The spelling of 31028127 in words is "thirty-one million, twenty-eight thousand, one hundred twenty-seven".