7131150 has 144 divisors (see below), whose sum is σ = 21936096. Its totient is φ = 1647360.

The previous prime is 7131139. The next prime is 7131191. The reversal of 7131150 is 511317.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 134524 + ... + 134576.

It is an arithmetic number, because the mean of its divisors is an integer number (152334).

Almost surely, 2^7131150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7131150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10968048).

7131150 is an abundant number, since it is smaller than the sum of its proper divisors (14804946).

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

7131150 is a wasteful number, since it uses less digits than its factorization.

7131150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 18.

The square root of 7131150 is about 2670.4213150737. The cubic root of 7131150 is about 192.4804050443.

Adding to 7131150 its reverse (511317), we get a palindrome (7642467).

The spelling of 7131150 in words is "seven million, one hundred thirty-one thousand, one hundred fifty".