127996049 has 2 divisors, whose sum is σ = 127996050. Its totient is φ = 127996048.

The previous prime is 127996019. The next prime is 127996091. The reversal of 127996049 is 940699721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87291649 + 40704400 = 9343^2 + 6380^2 .

It is a cyclic number.

It is not a de Polignac number, because 127996049 - 2¹² = 127991953 is a prime.

It is a super-2 number, since 2×127996049² = 32765977119220802, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 127995994 and 127996012.

It is not a weakly prime, because it can be changed into another prime (127996019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63998024 + 63998025.

It is an arithmetic number, because the mean of its divisors is an integer number (63998025).

Almost surely, 2^127996049 is an apocalyptic number.

It is an amenable number.

127996049 is a deficient number, since it is larger than the sum of its proper divisors (1).

127996049 is an equidigital number, since it uses as much as digits as its factorization.

127996049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 127996049 is about 11313.5338864565. The cubic root of 127996049 is about 503.9632345420.

The spelling of 127996049 in words is "one hundred twenty-seven million, nine hundred ninety-six thousand, forty-nine".