75645122 has 12 divisors (see below), whose sum is σ = 131993190. Its totient is φ = 32419296.

The previous prime is 75645083. The next prime is 75645133. The reversal of 75645122 is 22154657.

It can be written as a sum of positive squares in only one way, i.e., 65141041 + 10504081 = 8071^2 + 3241^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 385847 + ... + 386042.

Almost surely, 2^75645122 is an apocalyptic number.

75645122 is a deficient number, since it is larger than the sum of its proper divisors (56348068).

75645122 is a wasteful number, since it uses less digits than its factorization.

75645122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771905 (or 771898 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 75645122 is about 8697.4204221712. The cubic root of 75645122 is about 422.9220310589.

Adding to 75645122 its reverse (22154657), we get a palindrome (97799779).

The spelling of 75645122 in words is "seventy-five million, six hundred forty-five thousand, one hundred twenty-two".