7131398 has 16 divisors (see below), whose sum is σ = 11416464. Its totient is φ = 3329280.

The previous prime is 7131379. The next prime is 7131407. The reversal of 7131398 is 8931317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3893 + ... + 5423.

It is an arithmetic number, because the mean of its divisors is an integer number (713529).

Almost surely, 2^7131398 is an apocalyptic number.

7131398 is a deficient number, since it is larger than the sum of its proper divisors (4285066).

7131398 is a wasteful number, since it uses less digits than its factorization.

7131398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687.

The product of its digits is 4536, while the sum is 32.

The square root of 7131398 is about 2670.4677492904. The cubic root of 7131398 is about 192.4826363154.

The spelling of 7131398 in words is "seven million, one hundred thirty-one thousand, three hundred ninety-eight".