7066121 has 4 divisors (see below), whose sum is σ = 7216512. Its totient is φ = 6915732.

The previous prime is 7066117. The next prime is 7066183. The reversal of 7066121 is 1216607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7066121 - 2² = 7066117 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7066321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75125 + ... + 75218.

It is an arithmetic number, because the mean of its divisors is an integer number (1804128).

Almost surely, 2^7066121 is an apocalyptic number.

It is an amenable number.

7066121 is a deficient number, since it is larger than the sum of its proper divisors (150391).

7066121 is a wasteful number, since it uses less digits than its factorization.

7066121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150390.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 7066121 is about 2658.2176359358. The cubic root of 7066121 is about 191.8935408808.

The spelling of 7066121 in words is "seven million, sixty-six thousand, one hundred twenty-one".