7138712 has 24 divisors (see below), whose sum is σ = 15571260. Its totient is φ = 3059280.

The previous prime is 7138697. The next prime is 7138723. The reversal of 7138712 is 2178317.

It is a super-2 number, since 2×7138712² = 101922418037888, which contains 22 as substring.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 8714 + ... + 9497.

Almost surely, 2^7138712 is an apocalyptic number.

It is an amenable number.

7138712 is an abundant number, since it is smaller than the sum of its proper divisors (8432548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7138712 is a wasteful number, since it uses less digits than its factorization.

7138712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18231 (or 18220 counting only the distinct ones).

The product of its digits is 2352, while the sum is 29.

The square root of 7138712 is about 2671.8368213647. The cubic root of 7138712 is about 192.5484175731.

It can be divided in two parts, 71 and 38712, that added together give a palindrome (38783).

The spelling of 7138712 in words is "seven million, one hundred thirty-eight thousand, seven hundred twelve".