1355683057 has 2 divisors, whose sum is σ = 1355683058. Its totient is φ = 1355683056.

The previous prime is 1355683051. The next prime is 1355683099. The reversal of 1355683057 is 7503865531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734626816 + 621056241 = 27104^2 + 24921^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355683057 - 2⁷ = 1355682929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1355683051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677841528 + 677841529.

It is an arithmetic number, because the mean of its divisors is an integer number (677841529).

Almost surely, 2^1355683057 is an apocalyptic number.

It is an amenable number.

1355683057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355683057 is an equidigital number, since it uses as much as digits as its factorization.

1355683057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 43.

The square root of 1355683057 is about 36819.6015323360. The cubic root of 1355683057 is about 1106.7581348387.

The spelling of 1355683057 in words is "one billion, three hundred fifty-five million, six hundred eighty-three thousand, fifty-seven".