127279049 has 2 divisors, whose sum is σ = 127279050. Its totient is φ = 127279048.

The previous prime is 127279037. The next prime is 127279063. The reversal of 127279049 is 940972721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80425024 + 46854025 = 8968^2 + 6845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127279049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127278997 and 127279015.

It is not a weakly prime, because it can be changed into another prime (127279249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63639524 + 63639525.

It is an arithmetic number, because the mean of its divisors is an integer number (63639525).

Almost surely, 2^127279049 is an apocalyptic number.

It is an amenable number.

127279049 is a deficient number, since it is larger than the sum of its proper divisors (1).

127279049 is an equidigital number, since it uses as much as digits as its factorization.

127279049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 127279049 is about 11281.8016734917. The cubic root of 127279049 is about 503.0204490341.

The spelling of 127279049 in words is "one hundred twenty-seven million, two hundred seventy-nine thousand, forty-nine".