7138548 has 36 divisors (see below), whose sum is σ = 18432960. Its totient is φ = 2328336.

The previous prime is 7138541. The next prime is 7138561. The reversal of 7138548 is 8458317.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418 + ... + 3801.

Almost surely, 2^7138548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7138548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9216480).

7138548 is an abundant number, since it is smaller than the sum of its proper divisors (11294412).

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

7138548 is a wasteful number, since it uses less digits than its factorization.

7138548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276 (or 4271 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 7138548 is about 2671.8061306914. The cubic root of 7138548 is about 192.5469430689.

It can be divided in two parts, 713 and 8548, that added together give a cube (9261 = 21³).

The spelling of 7138548 in words is "seven million, one hundred thirty-eight thousand, five hundred forty-eight".