7138534 has 16 divisors (see below), whose sum is σ = 11575872. Its totient is φ = 3282048.

The previous prime is 7138513. The next prime is 7138541. The reversal of 7138534 is 4358317.

It is a junction number, because it is equal to n+sod(n) for n = 7138496 and 7138505.

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, 11742 + ... + 12334.

It is an arithmetic number, because the mean of its divisors is an integer number (723492).

Almost surely, 2^7138534 is an apocalyptic number.

7138534 is a deficient number, since it is larger than the sum of its proper divisors (4437338).

7138534 is a wasteful number, since it uses less digits than its factorization.

7138534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its digits is 10080, while the sum is 31.

The square root of 7138534 is about 2671.8035107395. The cubic root of 7138534 is about 192.5468171955.

The spelling of 7138534 in words is "seven million, one hundred thirty-eight thousand, five hundred thirty-four".