43097238257 has 4 divisors (see below), whose sum is σ = 43478629860. Its totient is φ = 42715846656.

The previous prime is 43097238199. The next prime is 43097238269. The reversal of 43097238257 is 75283279034.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75283279034 = 2 ⋅37641639517.

It can be written as a sum of positive squares in 2 ways, for example, as 5008251361 + 38088986896 = 70769^2 + 195164^2 .

It is a cyclic number.

It is not a de Polignac number, because 43097238257 - 2⁸ = 43097238001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43097288257) 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, 190695632 + ... + 190695857.

It is an arithmetic number, because the mean of its divisors is an integer number (10869657465).

Almost surely, 2^43097238257 is an apocalyptic number.

It is an amenable number.

43097238257 is a deficient number, since it is larger than the sum of its proper divisors (381391603).

43097238257 is a wasteful number, since it uses less digits than its factorization.

43097238257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381391602.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 43097238257 in words is "forty-three billion, ninety-seven million, two hundred thirty-eight thousand, two hundred fifty-seven".