127722533 has 2 divisors, whose sum is σ = 127722534. Its totient is φ = 127722532.

The previous prime is 127722523. The next prime is 127722563. The reversal of 127722533 is 335227721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124701889 + 3020644 = 11167^2 + 1738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127722533 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 127722533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127722523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63861266 + 63861267.

It is an arithmetic number, because the mean of its divisors is an integer number (63861267).

Almost surely, 2^127722533 is an apocalyptic number.

It is an amenable number.

127722533 is a deficient number, since it is larger than the sum of its proper divisors (1).

127722533 is an equidigital number, since it uses as much as digits as its factorization.

127722533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 32.

The square root of 127722533 is about 11301.4394215958. The cubic root of 127722533 is about 503.6040038960.

The spelling of 127722533 in words is "one hundred twenty-seven million, seven hundred twenty-two thousand, five hundred thirty-three".