7138500 has 48 divisors (see below), whose sum is σ = 20791680. Its totient is φ = 1903200.

The previous prime is 7138489. The next prime is 7138513. The reversal of 7138500 is 58317.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880 + ... + 3879.

It is an arithmetic number, because the mean of its divisors is an integer number (433160).

Almost surely, 2^7138500 is an apocalyptic number.

It is an amenable number.

7138500 is an abundant number, since it is smaller than the sum of its proper divisors (13653180).

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

7138500 is a wasteful number, since it uses less digits than its factorization.

7138500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4781 (or 4769 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 7138500 is about 2671.7971479886. The cubic root of 7138500 is about 192.5465115024.

The spelling of 7138500 in words is "seven million, one hundred thirty-eight thousand, five hundred".