2531117 has 2 divisors, whose sum is σ = 2531118. Its totient is φ = 2531116.

The previous prime is 2531107. The next prime is 2531167. The reversal of 2531117 is 7111352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1394761 + 1136356 = 1181^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 2531117 - 2⁴ = 2531101 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2531107) 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 as a sum of consecutive naturals, namely, 1265558 + 1265559.

It is an arithmetic number, because the mean of its divisors is an integer number (1265559).

2^2531117 is an apocalyptic number.

It is an amenable number.

2531117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2531117 is an equidigital number, since it uses as much as digits as its factorization.

2531117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 210, while the sum is 20.

The square root of 2531117 is about 1590.9484592532. The cubic root of 2531117 is about 136.2816574869.

Adding to 2531117 its reverse (7111352), we get a palindrome (9642469).

The spelling of 2531117 in words is "two million, five hundred thirty-one thousand, one hundred seventeen".