122722153 has 2 divisors, whose sum is σ = 122722154. Its totient is φ = 122722152.

The previous prime is 122722147. The next prime is 122722157. The reversal of 122722153 is 351227221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102981904 + 19740249 = 10148^2 + 4443^2 .

It is an emirp because it is prime and its reverse (351227221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122722153 - 2¹³ = 122713961 is a prime.

It is not a weakly prime, because it can be changed into another prime (122722157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61361076 + 61361077.

It is an arithmetic number, because the mean of its divisors is an integer number (61361077).

Almost surely, 2^122722153 is an apocalyptic number.

It is an amenable number.

122722153 is a deficient number, since it is larger than the sum of its proper divisors (1).

122722153 is an equidigital number, since it uses as much as digits as its factorization.

122722153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 25.

The square root of 122722153 is about 11078.0031142801. The cubic root of 122722153 is about 496.9442332915.

Adding to 122722153 its reverse (351227221), we get a palindrome (473949374).

The spelling of 122722153 in words is "one hundred twenty-two million, seven hundred twenty-two thousand, one hundred fifty-three".