355109985 has 24 divisors (see below), whose sum is σ = 616222464. Its totient is φ = 189177120.

The previous prime is 355109971. The next prime is 355110001. The reversal of 355109985 is 589901553.

355109985 is a `hidden beast` number, since 3 + 551 + 0 + 9 + 98 + 5 = 666.

It is not a de Polignac number, because 355109985 - 2⁶ = 355109921 is a prime.

It is a super-2 number, since 2×355109985² = 252206202893400450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 355109985.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40614 + ... + 48576.

It is an arithmetic number, because the mean of its divisors is an integer number (25675936).

Almost surely, 2^355109985 is an apocalyptic number.

It is an amenable number.

355109985 is a deficient number, since it is larger than the sum of its proper divisors (261112479).

355109985 is a wasteful number, since it uses less digits than its factorization.

355109985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8965 (or 8962 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 45.

The square root of 355109985 is about 18844.3621542359. The cubic root of 355109985 is about 708.1429915630.

The spelling of 355109985 in words is "three hundred fifty-five million, one hundred nine thousand, nine hundred eighty-five".