7115138 has 8 divisors (see below), whose sum is σ = 10728588. Its totient is φ = 3538944.

The previous prime is 7115117. The next prime is 7115153. The reversal of 7115138 is 8315117.

It can be written as a sum of positive squares in 2 ways, for example, as 7038409 + 76729 = 2653^2 + 277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8831 + ... + 9602.

Almost surely, 2^7115138 is an apocalyptic number.

7115138 is a deficient number, since it is larger than the sum of its proper divisors (3613450).

7115138 is a wasteful number, since it uses less digits than its factorization.

7115138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18628.

The product of its digits is 840, while the sum is 26.

The square root of 7115138 is about 2667.4216014721. The cubic root of 7115138 is about 192.3362344754.

The spelling of 7115138 in words is "seven million, one hundred fifteen thousand, one hundred thirty-eight".