1201050171 has 6 divisors (see below), whose sum is σ = 1734850260. Its totient is φ = 800700108.

The previous prime is 1201050163. The next prime is 1201050209. The reversal of 1201050171 is 1710501021.

It is a happy number.

It is not a de Polignac number, because 1201050171 - 2³ = 1201050163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201050101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66725001 + ... + 66725018.

It is an arithmetic number, because the mean of its divisors is an integer number (289141710).

Almost surely, 2^1201050171 is an apocalyptic number.

1201050171 is a deficient number, since it is larger than the sum of its proper divisors (533800089).

1201050171 is a wasteful number, since it uses less digits than its factorization.

1201050171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133450025 (or 133450022 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 1201050171 is about 34656.1707492331. The cubic root of 1201050171 is about 1062.9684713563.

Adding to 1201050171 its reverse (1710501021), we get a palindrome (2911551192).

The spelling of 1201050171 in words is "one billion, two hundred one million, fifty thousand, one hundred seventy-one".