2012142257 has 2 divisors, whose sum is σ = 2012142258. Its totient is φ = 2012142256.

The previous prime is 2012142241. The next prime is 2012142259. The reversal of 2012142257 is 7522412102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1654781041 + 357361216 = 40679^2 + 18904^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012142257 - 2⁴ = 2012142241 is a prime.

Together with 2012142259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2012142259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006071128 + 1006071129.

It is an arithmetic number, because the mean of its divisors is an integer number (1006071129).

Almost surely, 2^2012142257 is an apocalyptic number.

It is an amenable number.

2012142257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012142257 is an equidigital number, since it uses as much as digits as its factorization.

2012142257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2012142257 is about 44856.9086875143. The cubic root of 2012142257 is about 1262.4656215453.

Adding to 2012142257 its reverse (7522412102), we get a palindrome (9534554359).

The spelling of 2012142257 in words is "two billion, twelve million, one hundred forty-two thousand, two hundred fifty-seven".