7131973 has 4 divisors (see below), whose sum is σ = 7507360. Its totient is φ = 6756588.

The previous prime is 7131967. The next prime is 7131977. The reversal of 7131973 is 3791317.

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 7131973 - 2⁹ = 7131461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7131977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187665 + ... + 187702.

It is an arithmetic number, because the mean of its divisors is an integer number (1876840).

Almost surely, 2^7131973 is an apocalyptic number.

It is an amenable number.

7131973 is a deficient number, since it is larger than the sum of its proper divisors (375387).

7131973 is a wasteful number, since it uses less digits than its factorization.

7131973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375386.

The product of its digits is 3969, while the sum is 31.

The square root of 7131973 is about 2670.5754061625. The cubic root of 7131973 is about 192.4878094265.

The spelling of 7131973 in words is "seven million, one hundred thirty-one thousand, nine hundred seventy-three".