2101597601 has 4 divisors (see below), whose sum is σ = 2169391104. Its totient is φ = 2033804100.

The previous prime is 2101597591. The next prime is 2101597633. The reversal of 2101597601 is 1067951012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2101597601 - 2¹⁴ = 2101581217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2101597301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33896705 + ... + 33896766.

It is an arithmetic number, because the mean of its divisors is an integer number (542347776).

Almost surely, 2^2101597601 is an apocalyptic number.

It is an amenable number.

2101597601 is a deficient number, since it is larger than the sum of its proper divisors (67793503).

2101597601 is an equidigital number, since it uses as much as digits as its factorization.

2101597601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67793502.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 2101597601 is about 45843.1848915409. The cubic root of 2101597601 is about 1280.9038214908.

The spelling of 2101597601 in words is "two billion, one hundred one million, five hundred ninety-seven thousand, six hundred one".