127090949 has 2 divisors, whose sum is σ = 127090950. Its totient is φ = 127090948.

The previous prime is 127090919. The next prime is 127090991. The reversal of 127090949 is 949090721.

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., 118417924 + 8673025 = 10882^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 127090949 - 2¹² = 127086853 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127090919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63545474 + 63545475.

It is an arithmetic number, because the mean of its divisors is an integer number (63545475).

Almost surely, 2^127090949 is an apocalyptic number.

It is an amenable number.

127090949 is a deficient number, since it is larger than the sum of its proper divisors (1).

127090949 is an equidigital number, since it uses as much as digits as its factorization.

127090949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 127090949 is about 11273.4621567644. The cubic root of 127090949 is about 502.7725297414.

The spelling of 127090949 in words is "one hundred twenty-seven million, ninety thousand, nine hundred forty-nine".