7273134257 has 4 divisors (see below), whose sum is σ = 7523932020. Its totient is φ = 7022336496.

The previous prime is 7273134217. The next prime is 7273134277. The reversal of 7273134257 is 7524313727.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4833169441 + 2439964816 = 69521^2 + 49396^2 .

It is a cyclic number.

It is not a de Polignac number, because 7273134257 - 2¹⁰ = 7273133233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7273134217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125398838 + ... + 125398895.

It is an arithmetic number, because the mean of its divisors is an integer number (1880983005).

Almost surely, 2^7273134257 is an apocalyptic number.

It is an amenable number.

7273134257 is a deficient number, since it is larger than the sum of its proper divisors (250797763).

7273134257 is a wasteful number, since it uses less digits than its factorization.

7273134257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250797762.

The product of its digits is 246960, while the sum is 41.

The square root of 7273134257 is about 85282.6726656711. The cubic root of 7273134257 is about 1937.4947519081.

The spelling of 7273134257 in words is "seven billion, two hundred seventy-three million, one hundred thirty-four thousand, two hundred fifty-seven".