7138499 has 4 divisors (see below), whose sum is σ = 7179936. Its totient is φ = 7097064.

The previous prime is 7138489. The next prime is 7138513. The reversal of 7138499 is 9948317.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9948317 = 419 ⋅23743.

It is a cyclic number.

It is not a de Polignac number, because 7138499 - 2¹⁶ = 7072963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20459 + ... + 20804.

It is an arithmetic number, because the mean of its divisors is an integer number (1794984).

Almost surely, 2^7138499 is an apocalyptic number.

7138499 is a deficient number, since it is larger than the sum of its proper divisors (41437).

7138499 is a wasteful number, since it uses less digits than its factorization.

7138499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41436.

The product of its digits is 54432, while the sum is 41.

The square root of 7138499 is about 2671.7969608486. The cubic root of 7138499 is about 192.5465025114.

The spelling of 7138499 in words is "seven million, one hundred thirty-eight thousand, four hundred ninety-nine".