7313261 has 2 divisors, whose sum is σ = 7313262. Its totient is φ = 7313260.

The previous prime is 7313239. The next prime is 7313291. The reversal of 7313261 is 1623137.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6325225 + 988036 = 2515^2 + 994^2 .

It is an emirp because it is prime and its reverse (1623137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7313261 - 2¹⁰ = 7312237 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7313221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3656630 + 3656631.

It is an arithmetic number, because the mean of its divisors is an integer number (3656631).

Almost surely, 2^7313261 is an apocalyptic number.

It is an amenable number.

7313261 is a deficient number, since it is larger than the sum of its proper divisors (1).

7313261 is an equidigital number, since it uses as much as digits as its factorization.

7313261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 23.

The square root of 7313261 is about 2704.3041618871. The cubic root of 7313261 is about 194.1051348513.

Adding to 7313261 its reverse (1623137), we get a palindrome (8936398).

The spelling of 7313261 in words is "seven million, three hundred thirteen thousand, two hundred sixty-one".