343125557 has 2 divisors, whose sum is σ = 343125558. Its totient is φ = 343125556.

The previous prime is 343125539. The next prime is 343125581. The reversal of 343125557 is 755521343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 279859441 + 63266116 = 16729^2 + 7954^2 .

It is a cyclic number.

It is not a de Polignac number, because 343125557 - 2¹⁰ = 343124533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343125257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171562778 + 171562779.

It is an arithmetic number, because the mean of its divisors is an integer number (171562779).

Almost surely, 2^343125557 is an apocalyptic number.

It is an amenable number.

343125557 is a deficient number, since it is larger than the sum of its proper divisors (1).

343125557 is an equidigital number, since it uses as much as digits as its factorization.

343125557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63000, while the sum is 35.

The square root of 343125557 is about 18523.6485876838. The cubic root of 343125557 is about 700.0854025053.

The spelling of 343125557 in words is "three hundred forty-three million, one hundred twenty-five thousand, five hundred fifty-seven".