122275145 has 8 divisors (see below), whose sum is σ = 148183560. Its totient is φ = 96851200.

The previous prime is 122275123. The next prime is 122275147. The reversal of 122275145 is 541572221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25999801 + 96275344 = 5099^2 + 9812^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122275145 - 2¹² = 122271049 is a prime.

It is a super-2 number, since 2×122275145² = 29902422169542050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122275147) 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 in 7 ways as a sum of consecutive naturals, for example, 120560 + ... + 121569.

It is an arithmetic number, because the mean of its divisors is an integer number (18522945).

Almost surely, 2^122275145 is an apocalyptic number.

It is an amenable number.

122275145 is a deficient number, since it is larger than the sum of its proper divisors (25908415).

122275145 is a wasteful number, since it uses less digits than its factorization.

122275145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242235.

The product of its digits is 5600, while the sum is 29.

The square root of 122275145 is about 11057.8092314888. The cubic root of 122275145 is about 496.3401361565.

It can be divided in two parts, 1222 and 75145, that added together give a palindrome (76367).

The spelling of 122275145 in words is "one hundred twenty-two million, two hundred seventy-five thousand, one hundred forty-five".