1355674857 has 16 divisors (see below), whose sum is σ = 1916308992. Its totient is φ = 850988160.

The previous prime is 1355674849. The next prime is 1355674867. The reversal of 1355674857 is 7584765531.

It is not a de Polignac number, because 1355674857 - 2³ = 1355674849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1355674807) 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 15 ways as a sum of consecutive naturals, for example, 193548 + ... + 200429.

It is an arithmetic number, because the mean of its divisors is an integer number (119769312).

Almost surely, 2^1355674857 is an apocalyptic number.

It is an amenable number.

1355674857 is a deficient number, since it is larger than the sum of its proper divisors (560634135).

1355674857 is a wasteful number, since it uses less digits than its factorization.

1355674857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394048.

The product of its digits is 3528000, while the sum is 51.

The square root of 1355674857 is about 36819.4901784367. The cubic root of 1355674857 is about 1106.7559033842.

It can be divided in two parts, 1355674 and 857, that added together give a palindrome (1356531).

The spelling of 1355674857 in words is "one billion, three hundred fifty-five million, six hundred seventy-four thousand, eight hundred fifty-seven".