43144303357 has 2 divisors, whose sum is σ = 43144303358. Its totient is φ = 43144303356.

The previous prime is 43144303339. The next prime is 43144303381. The reversal of 43144303357 is 75330344134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35306034201 + 7838269156 = 187899^2 + 88534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43144303357 is a prime.

It is a super-2 number, since 2×43144303357² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43144303387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21572151678 + 21572151679.

It is an arithmetic number, because the mean of its divisors is an integer number (21572151679).

Almost surely, 2^43144303357 is an apocalyptic number.

It is an amenable number.

43144303357 is a deficient number, since it is larger than the sum of its proper divisors (1).

43144303357 is an equidigital number, since it uses as much as digits as its factorization.

43144303357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 37.

The spelling of 43144303357 in words is "forty-three billion, one hundred forty-four million, three hundred three thousand, three hundred fifty-seven".