7138575 has 18 divisors (see below), whose sum is σ = 12786384. Its totient is φ = 3807120.

The previous prime is 7138561. The next prime is 7138577. The reversal of 7138575 is 5758317.

It is not a de Polignac number, because 7138575 - 2¹⁵ = 7105807 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138577) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15639 + ... + 16088.

Almost surely, 2^7138575 is an apocalyptic number.

7138575 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7138575 is a deficient number, since it is larger than the sum of its proper divisors (5647809).

7138575 is a wasteful number, since it uses less digits than its factorization.

7138575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31743 (or 31735 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The square root of 7138575 is about 2671.8111834484. The cubic root of 7138575 is about 192.5471858242.

The spelling of 7138575 in words is "seven million, one hundred thirty-eight thousand, five hundred seventy-five".