122881501 has 2 divisors, whose sum is σ = 122881502. Its totient is φ = 122881500.

The previous prime is 122881471. The next prime is 122881513. The reversal of 122881501 is 105188221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122124601 + 756900 = 11051^2 + 870^2 .

It is an emirp because it is prime and its reverse (105188221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122881501 - 2⁷ = 122881373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122881501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122881541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61440750 + 61440751.

It is an arithmetic number, because the mean of its divisors is an integer number (61440751).

Almost surely, 2^122881501 is an apocalyptic number.

It is an amenable number.

122881501 is a deficient number, since it is larger than the sum of its proper divisors (1).

122881501 is an equidigital number, since it uses as much as digits as its factorization.

122881501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 122881501 is about 11085.1928715742. The cubic root of 122881501 is about 497.1592252308.

The spelling of 122881501 in words is "one hundred twenty-two million, eight hundred eighty-one thousand, five hundred one".