126988049 has 2 divisors, whose sum is σ = 126988050. Its totient is φ = 126988048.

The previous prime is 126988027. The next prime is 126988051. The reversal of 126988049 is 940889621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123988225 + 2999824 = 11135^2 + 1732^2 .

It is a cyclic number.

It is not a de Polignac number, because 126988049 - 2⁸ = 126987793 is a prime.

It is a super-2 number, since 2×126988049² = 32251929177652802, which contains 22 as substring.

Together with 126988051, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 126987994 and 126988012.

It is not a weakly prime, because it can be changed into another prime (126988009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63494024 + 63494025.

It is an arithmetic number, because the mean of its divisors is an integer number (63494025).

Almost surely, 2^126988049 is an apocalyptic number.

It is an amenable number.

126988049 is a deficient number, since it is larger than the sum of its proper divisors (1).

126988049 is an equidigital number, since it uses as much as digits as its factorization.

126988049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 126988049 is about 11268.8974172276. The cubic root of 126988049 is about 502.6368021054.

The spelling of 126988049 in words is "one hundred twenty-six million, nine hundred eighty-eight thousand, forty-nine".