7146985 has 4 divisors (see below), whose sum is σ = 8576388. Its totient is φ = 5717584.

The previous prime is 7146973. The next prime is 7147001. The reversal of 7146985 is 5896417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5896417 = 31 ⋅190207.

It can be written as a sum of positive squares in 2 ways, for example, as 4932841 + 2214144 = 2221^2 + 1488^2 .

It is a cyclic number.

It is not a de Polignac number, because 7146985 - 2⁷ = 7146857 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 714694 + ... + 714703.

It is an arithmetic number, because the mean of its divisors is an integer number (2144097).

Almost surely, 2^7146985 is an apocalyptic number.

It is an amenable number.

7146985 is a deficient number, since it is larger than the sum of its proper divisors (1429403).

7146985 is a wasteful number, since it uses less digits than its factorization.

7146985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429402.

The product of its digits is 60480, while the sum is 40.

The square root of 7146985 is about 2673.3845589440. The cubic root of 7146985 is about 192.6227698325.

It can be divided in two parts, 7 and 146985, that multiplied together give a triangular number (1028895 = T₁₄₃₄).

The spelling of 7146985 in words is "seven million, one hundred forty-six thousand, nine hundred eighty-five".