75221104 has 40 divisors (see below), whose sum is σ = 170445440. Its totient is φ = 31485888.

The previous prime is 75221089. The next prime is 75221119. The reversal of 75221104 is 40112257.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (75221089) and next prime (75221119).

It is a congruent number.

It is an unprimeable number.

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, 2994 + ... + 12625.

It is an arithmetic number, because the mean of its divisors is an integer number (4261136).

Almost surely, 2^75221104 is an apocalyptic number.

It is an amenable number.

75221104 is an abundant number, since it is smaller than the sum of its proper divisors (95224336).

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

75221104 is a wasteful number, since it uses less digits than its factorization.

75221104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15677 (or 15671 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 75221104 is about 8673.0100887754. The cubic root of 75221104 is about 422.1303401583.

The spelling of 75221104 in words is "seventy-five million, two hundred twenty-one thousand, one hundred four".