200891145 has 48 divisors (see below), whose sum is σ = 397809792. Its totient is φ = 84764160.

The previous prime is 200891137. The next prime is 200891189. The reversal of 200891145 is 541198002.

It is a happy number.

It is not a de Polignac number, because 200891145 - 2³ = 200891137 is a prime.

It is a super-2 number, since 2×200891145² = 80714504278822050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12085 + ... + 23405.

It is an arithmetic number, because the mean of its divisors is an integer number (8287704).

Almost surely, 2^200891145 is an apocalyptic number.

It is an amenable number.

200891145 is a deficient number, since it is larger than the sum of its proper divisors (196918647).

200891145 is a wasteful number, since it uses less digits than its factorization.

200891145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362 (or 11349 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 200891145 is about 14173.6073389945. The cubic root of 200891145 is about 585.6708353791.

The spelling of 200891145 in words is "two hundred million, eight hundred ninety-one thousand, one hundred forty-five".