7138936 has 16 divisors (see below), whose sum is σ = 15297840. Its totient is φ = 3059520.

The previous prime is 7138931. The next prime is 7138949. The reversal of 7138936 is 6398317.

It is a junction number, because it is equal to n+sod(n) for n = 7138895 and 7138904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138931) 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, 63685 + ... + 63796.

It is an arithmetic number, because the mean of its divisors is an integer number (956115).

Almost surely, 2^7138936 is an apocalyptic number.

It is an amenable number.

7138936 is an abundant number, since it is smaller than the sum of its proper divisors (8158904).

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

7138936 is a wasteful number, since it uses less digits than its factorization.

7138936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127494 (or 127490 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 7138936 is about 2671.8787397635. The cubic root of 7138936 is about 192.5504314935.

The spelling of 7138936 in words is "seven million, one hundred thirty-eight thousand, nine hundred thirty-six".