2100293 has 4 divisors (see below), whose sum is σ = 2261868. Its totient is φ = 1938720.

The previous prime is 2100277. The next prime is 2100313. The reversal of 2100293 is 3920012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 770884 + 1329409 = 878^2 + 1153^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100293 - 2⁴ = 2100277 is a prime.

It is a super-2 number, since 2×2100293² = 8822461371698, which contains 22 as substring.

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 (2100253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80768 + ... + 80793.

It is an arithmetic number, because the mean of its divisors is an integer number (565467).

2^2100293 is an apocalyptic number.

It is an amenable number.

2100293 is a deficient number, since it is larger than the sum of its proper divisors (161575).

2100293 is a wasteful number, since it uses less digits than its factorization.

2100293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161574.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2100293 is about 1449.2387656974. The cubic root of 2100293 is about 128.0638719312.

The spelling of 2100293 in words is "two million, one hundred thousand, two hundred ninety-three".