7340531257 has 4 divisors (see below), whose sum is σ = 7341417360. Its totient is φ = 7339645156.

The previous prime is 7340531249. The next prime is 7340531267. The reversal of 7340531257 is 7521350437.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7340531257 - 2³ = 7340531249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7340531267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430507 + ... + 447232.

It is an arithmetic number, because the mean of its divisors is an integer number (1835354340).

Almost surely, 2^7340531257 is an apocalyptic number.

It is an amenable number.

7340531257 is a deficient number, since it is larger than the sum of its proper divisors (886103).

7340531257 is an equidigital number, since it uses as much as digits as its factorization.

7340531257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886102.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 7340531257 is about 85676.9003699364. The cubic root of 7340531257 is about 1943.4610036846.

The spelling of 7340531257 in words is "seven billion, three hundred forty million, five hundred thirty-one thousand, two hundred fifty-seven".