75445122 has 16 divisors (see below), whose sum is σ = 152586720. Its totient is φ = 24865632.

The previous prime is 75445121. The next prime is 75445141. The reversal of 75445122 is 22154457.

It is a self number, because there is not a number n which added to its sum of digits gives 75445122.

It is not an unprimeable number, because it can be changed into a prime (75445121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70108 + ... + 71175.

It is an arithmetic number, because the mean of its divisors is an integer number (9536670).

Almost surely, 2^75445122 is an apocalyptic number.

75445122 is an abundant number, since it is smaller than the sum of its proper divisors (77141598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75445122 is a wasteful number, since it uses less digits than its factorization.

75445122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141377.

The product of its digits is 11200, while the sum is 30.

The square root of 75445122 is about 8685.9151504030. The cubic root of 75445122 is about 422.5489774343.

Adding to 75445122 its reverse (22154457), we get a palindrome (97599579).

The spelling of 75445122 in words is "seventy-five million, four hundred forty-five thousand, one hundred twenty-two".