1358857 has 2 divisors, whose sum is σ = 1358858. Its totient is φ = 1358856.

The previous prime is 1358837. The next prime is 1358881. The reversal of 1358857 is 7588531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1263376 + 95481 = 1124^2 + 309^2 .

It is a cyclic number.

It is not a de Polignac number, because 1358857 - 2⁷ = 1358729 is a prime.

It is a Chen prime.

1358857 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1358807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679428 + 679429.

It is an arithmetic number, because the mean of its divisors is an integer number (679429).

2^1358857 is an apocalyptic number.

It is an amenable number.

1358857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1358857 is an equidigital number, since it uses as much as digits as its factorization.

1358857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 37.

The square root of 1358857 is about 1165.7002187527. The cubic root of 1358857 is about 110.7621180564.

The spelling of 1358857 in words is "one million, three hundred fifty-eight thousand, eight hundred fifty-seven".