7131501 has 12 divisors (see below), whose sum is σ = 11093628. Its totient is φ = 4388544.

The previous prime is 7131469. The next prime is 7131503. The reversal of 7131501 is 1051317.

It is a happy number.

7131501 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1153476 + 5978025 = 1074^2 + 2445^2 .

It is not a de Polignac number, because 7131501 - 2⁵ = 7131469 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7131503) 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 11 ways as a sum of consecutive naturals, for example, 30360 + ... + 30593.

It is an arithmetic number, because the mean of its divisors is an integer number (924469).

Almost surely, 2^7131501 is an apocalyptic number.

It is an amenable number.

7131501 is a deficient number, since it is larger than the sum of its proper divisors (3962127).

7131501 is a wasteful number, since it uses less digits than its factorization.

7131501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60972 (or 60969 counting only the distinct ones).

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

The square root of 7131501 is about 2670.4870342318. The cubic root of 7131501 is about 192.4835629975.

Adding to 7131501 its reverse (1051317), we get a palindrome (8182818).

The spelling of 7131501 in words is "seven million, one hundred thirty-one thousand, five hundred one".