75416121 has 12 divisors (see below), whose sum is σ = 118837680. Its totient is φ = 45706680.

The previous prime is 75416113. The next prime is 75416123. The reversal of 75416121 is 12161457.

It is a happy number.

75416121 is a `hidden beast` number, since 7 + 5 + 41 + 612 + 1 = 666.

It is not a de Polignac number, because 75416121 - 2³ = 75416113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75416123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 380791 + ... + 380988.

It is an arithmetic number, because the mean of its divisors is an integer number (9903140).

Almost surely, 2^75416121 is an apocalyptic number.

It is an amenable number.

75416121 is a deficient number, since it is larger than the sum of its proper divisors (43421559).

75416121 is a wasteful number, since it uses less digits than its factorization.

75416121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761796 (or 761793 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 75416121 is about 8684.2455630872. The cubic root of 75416121 is about 422.4948280823.

Adding to 75416121 its reverse (12161457), we get a palindrome (87577578).

The spelling of 75416121 in words is "seventy-five million, four hundred sixteen thousand, one hundred twenty-one".