127643141 has 2 divisors, whose sum is σ = 127643142. Its totient is φ = 127643140.

The previous prime is 127643129. The next prime is 127643167. The reversal of 127643141 is 141346721.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122190916 + 5452225 = 11054^2 + 2335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127643141 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 (127643101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63821570 + 63821571.

It is an arithmetic number, because the mean of its divisors is an integer number (63821571).

Almost surely, 2^127643141 is an apocalyptic number.

It is an amenable number.

127643141 is a deficient number, since it is larger than the sum of its proper divisors (1).

127643141 is an equidigital number, since it uses as much as digits as its factorization.

127643141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 127643141 is about 11297.9264026635. The cubic root of 127643141 is about 503.4996359476.

Adding to 127643141 its reverse (141346721), we get a palindrome (268989862).

The spelling of 127643141 in words is "one hundred twenty-seven million, six hundred forty-three thousand, one hundred forty-one".