1201705101 has 6 divisors (see below), whose sum is σ = 1735796270. Its totient is φ = 801136728.

The previous prime is 1201705091. The next prime is 1201705117. The reversal of 1201705101 is 1015071021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1122317001 + 79388100 = 33501^2 + 8910^2 .

It is not a de Polignac number, because 1201705101 - 2¹⁴ = 1201688717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201705151) 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, 66761386 + ... + 66761403.

Almost surely, 2^1201705101 is an apocalyptic number.

It is an amenable number.

1201705101 is a deficient number, since it is larger than the sum of its proper divisors (534091169).

1201705101 is a wasteful number, since it uses less digits than its factorization.

1201705101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133522795 (or 133522792 counting only the distinct ones).

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

The square root of 1201705101 is about 34665.6184280621. The cubic root of 1201705101 is about 1063.1616476993.

Adding to 1201705101 its reverse (1015071021), we get a palindrome (2216776122).

The spelling of 1201705101 in words is "one billion, two hundred one million, seven hundred five thousand, one hundred one".