127494821 has 2 divisors, whose sum is σ = 127494822. Its totient is φ = 127494820.

The previous prime is 127494797. The next prime is 127494827. The reversal of 127494821 is 128494721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97792321 + 29702500 = 9889^2 + 5450^2 .

It is a cyclic number.

It is not a de Polignac number, because 127494821 - 2¹⁰ = 127493797 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 (127494827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63747410 + 63747411.

It is an arithmetic number, because the mean of its divisors is an integer number (63747411).

Almost surely, 2^127494821 is an apocalyptic number.

It is an amenable number.

127494821 is a deficient number, since it is larger than the sum of its proper divisors (1).

127494821 is an equidigital number, since it uses as much as digits as its factorization.

127494821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 127494821 is about 11291.3604583327. The cubic root of 127494821 is about 503.3045399178.

The spelling of 127494821 in words is "one hundred twenty-seven million, four hundred ninety-four thousand, eight hundred twenty-one".