201140145 has 32 divisors (see below), whose sum is σ = 363657600. Its totient is φ = 105452352.

The previous prime is 201140131. The next prime is 201140171. The reversal of 201140145 is 541041102.

It is not a de Polignac number, because 201140145 - 2⁹ = 201139633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4662 + ... + 20591.

It is an arithmetic number, because the mean of its divisors is an integer number (11364300).

Almost surely, 2^201140145 is an apocalyptic number.

It is an amenable number.

201140145 is a deficient number, since it is larger than the sum of its proper divisors (162517455).

201140145 is a wasteful number, since it uses less digits than its factorization.

201140145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25326 (or 25320 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 201140145 is about 14182.3885505933. The cubic root of 201140145 is about 585.9127106953.

Adding to 201140145 its reverse (541041102), we get a palindrome (742181247).

The spelling of 201140145 in words is "two hundred one million, one hundred forty thousand, one hundred forty-five".