2100190797 has 12 divisors (see below), whose sum is σ = 3042207324. Its totient is φ = 1396158720.

The previous prime is 2100190739. The next prime is 2100190811. The reversal of 2100190797 is 7970910012.

It can be written as a sum of positive squares in 2 ways, for example, as 1317254436 + 782936361 = 36294^2 + 27981^2 .

It is not a de Polignac number, because 2100190797 - 2²² = 2095996493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100190397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 327354 + ... + 333707.

It is an arithmetic number, because the mean of its divisors is an integer number (253517277).

Almost surely, 2^2100190797 is an apocalyptic number.

It is an amenable number.

2100190797 is a deficient number, since it is larger than the sum of its proper divisors (942016527).

2100190797 is a wasteful number, since it uses less digits than its factorization.

2100190797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661420 (or 661417 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 2100190797 is about 45827.8386682156. The cubic root of 2100190797 is about 1280.6179464579.

The spelling of 2100190797 in words is "two billion, one hundred million, one hundred ninety thousand, seven hundred ninety-seven".