122948887 has 2 divisors, whose sum is σ = 122948888. Its totient is φ = 122948886.

The previous prime is 122948857. The next prime is 122948899. The reversal of 122948887 is 788849221.

It is a strong prime.

It is an emirp because it is prime and its reverse (788849221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122948887 - 2¹⁵ = 122916119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122948887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122948857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61474443 + 61474444.

It is an arithmetic number, because the mean of its divisors is an integer number (61474444).

Almost surely, 2^122948887 is an apocalyptic number.

122948887 is a deficient number, since it is larger than the sum of its proper divisors (1).

122948887 is an equidigital number, since it uses as much as digits as its factorization.

122948887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 49.

The square root of 122948887 is about 11088.2319149628. The cubic root of 122948887 is about 497.2500863430.

The spelling of 122948887 in words is "one hundred twenty-two million, nine hundred forty-eight thousand, eight hundred eighty-seven".