75440122 has 4 divisors (see below), whose sum is σ = 113160186. Its totient is φ = 37720060.

The previous prime is 75440117. The next prime is 75440137. The reversal of 75440122 is 22104457.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57623281 + 17816841 = 7591^2 + 4221^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18860029 + ... + 18860032.

Almost surely, 2^75440122 is an apocalyptic number.

75440122 is a deficient number, since it is larger than the sum of its proper divisors (37720064).

75440122 is a wasteful number, since it uses less digits than its factorization.

75440122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37720063.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 75440122 is about 8685.6273233429. The cubic root of 75440122 is about 422.5396426512.

Adding to 75440122 its reverse (22104457), we get a palindrome (97544579).

The spelling of 75440122 in words is "seventy-five million, four hundred forty thousand, one hundred twenty-two".