1357085185 has 4 divisors (see below), whose sum is σ = 1628502228. Its totient is φ = 1085668144.

The previous prime is 1357085101. The next prime is 1357085243. The reversal of 1357085185 is 5815807531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188265841 + 1168819344 = 13721^2 + 34188^2 .

It is a cyclic number.

It is not a de Polignac number, because 1357085185 - 2⁷ = 1357085057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135708514 + ... + 135708523.

It is an arithmetic number, because the mean of its divisors is an integer number (407125557).

Almost surely, 2^1357085185 is an apocalyptic number.

It is an amenable number.

1357085185 is a deficient number, since it is larger than the sum of its proper divisors (271417043).

1357085185 is an equidigital number, since it uses as much as digits as its factorization.

1357085185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271417042.

The product of its (nonzero) digits is 168000, while the sum is 43.

The square root of 1357085185 is about 36838.6371219132. The cubic root of 1357085185 is about 1107.1395617205.

The spelling of 1357085185 in words is "one billion, three hundred fifty-seven million, eighty-five thousand, one hundred eighty-five".