1601207101 has 12 divisors (see below), whose sum is σ = 1831781812. Its totient is φ = 1391090688.

The previous prime is 1601207093. The next prime is 1601207129. The reversal of 1601207101 is 1017021061.

It can be written as a sum of positive squares in 6 ways, for example, as 293299876 + 1307907225 = 17126^2 + 36165^2 .

It is not a de Polignac number, because 1601207101 - 2³ = 1601207093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601207141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209340 + ... + 216853.

Almost surely, 2^1601207101 is an apocalyptic number.

It is an amenable number.

1601207101 is a deficient number, since it is larger than the sum of its proper divisors (230574711).

1601207101 is a wasteful number, since it uses less digits than its factorization.

1601207101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426240 (or 426223 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 1601207101 is about 40015.0859176886. The cubic root of 1601207101 is about 1169.9011534093.

Adding to 1601207101 its reverse (1017021061), we get a palindrome (2618228162).

The spelling of 1601207101 in words is "one billion, six hundred one million, two hundred seven thousand, one hundred one".