7136144 has 10 divisors (see below), whose sum is σ = 13826310. Its totient is φ = 3568064.

The previous prime is 7136131. The next prime is 7136161. The reversal of 7136144 is 4416317.

It can be written as a sum of positive squares in only one way, i.e., 6822544 + 313600 = 2612^2 + 560^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 222989 + ... + 223020.

It is an arithmetic number, because the mean of its divisors is an integer number (1382631).

Almost surely, 2^7136144 is an apocalyptic number.

It is an amenable number.

7136144 is a deficient number, since it is larger than the sum of its proper divisors (6690166).

7136144 is a wasteful number, since it uses less digits than its factorization.

7136144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446017 (or 446011 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 7136144 is about 2671.3562098679. The cubic root of 7136144 is about 192.5253264030.

The spelling of 7136144 in words is "seven million, one hundred thirty-six thousand, one hundred forty-four".