7131722 has 16 divisors (see below), whose sum is σ = 11790240. Its totient is φ = 3214512.

The previous prime is 7131703. The next prime is 7131727. The reversal of 7131722 is 2271317.

It is a super-2 number, since 2×7131722² = 101722917370568, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7131727) 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 7 ways as a sum of consecutive naturals, for example, 2072 + ... + 4307.

It is an arithmetic number, because the mean of its divisors is an integer number (736890).

Almost surely, 2^7131722 is an apocalyptic number.

7131722 is a deficient number, since it is larger than the sum of its proper divisors (4658518).

7131722 is a wasteful number, since it uses less digits than its factorization.

7131722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6437.

The product of its digits is 588, while the sum is 23.

The square root of 7131722 is about 2670.5284121312. The cubic root of 7131722 is about 192.4855512852.

The spelling of 7131722 in words is "seven million, one hundred thirty-one thousand, seven hundred twenty-two".