2112541 has 2 divisors, whose sum is σ = 2112542. Its totient is φ = 2112540.

The previous prime is 2112533. The next prime is 2112569. The reversal of 2112541 is 1452112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1390041 + 722500 = 1179^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112541 - 2³ = 2112533 is a prime.

It is a pancake number, because a pancake can be divided into 2112541 parts by 2055 straight cuts.

2112541 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056270 + 1056271.

It is an arithmetic number, because the mean of its divisors is an integer number (1056271).

2^2112541 is an apocalyptic number.

It is an amenable number.

2112541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112541 is an equidigital number, since it uses as much as digits as its factorization.

2112541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80, while the sum is 16.

The square root of 2112541 is about 1453.4582897352. The cubic root of 2112541 is about 128.3123272903.

Adding to 2112541 its reverse (1452112), we get a palindrome (3564653).

The spelling of 2112541 in words is "two million, one hundred twelve thousand, five hundred forty-one".