7166542 has 4 divisors (see below), whose sum is σ = 10749816. Its totient is φ = 3583270.

The previous prime is 7166531. The next prime is 7166543. The reversal of 7166542 is 2456617.

It is a happy number.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7166543) by changing a digit.

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 as a sum of consecutive naturals, namely, 1791634 + ... + 1791637.

It is an arithmetic number, because the mean of its divisors is an integer number (2687454).

Almost surely, 2^7166542 is an apocalyptic number.

7166542 is a deficient number, since it is larger than the sum of its proper divisors (3583274).

7166542 is a wasteful number, since it uses less digits than its factorization.

7166542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583273.

The product of its digits is 10080, while the sum is 31.

The square root of 7166542 is about 2677.0397830440. The cubic root of 7166542 is about 192.7983073777.

The spelling of 7166542 in words is "seven million, one hundred sixty-six thousand, five hundred forty-two".