7241531 has 4 divisors (see below), whose sum is σ = 7899864. Its totient is φ = 6583200.

The previous prime is 7241519. The next prime is 7241537. The reversal of 7241531 is 1351427.

7241531 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7241531 is a prime.

It is a super-2 number, since 2×7241531² = 104879542447922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7241497 and 7241506.

It is not an unprimeable number, because it can be changed into a prime (7241537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329150 + ... + 329171.

It is an arithmetic number, because the mean of its divisors is an integer number (1974966).

Almost surely, 2^7241531 is an apocalyptic number.

7241531 is a deficient number, since it is larger than the sum of its proper divisors (658333).

7241531 is a wasteful number, since it uses less digits than its factorization.

7241531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658332.

The product of its digits is 840, while the sum is 23.

The square root of 7241531 is about 2691.0092902106. The cubic root of 7241531 is about 193.4684407041.

Adding to 7241531 its reverse (1351427), we get a palindrome (8592958).

The spelling of 7241531 in words is "seven million, two hundred forty-one thousand, five hundred thirty-one".