2100297 has 4 divisors (see below), whose sum is σ = 2800400. Its totient is φ = 1400196.

The previous prime is 2100277. The next prime is 2100313. The reversal of 2100297 is 7920012.

It is a happy number.

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 not a de Polignac number, because 2100297 - 2⁸ = 2100041 is a prime.

It is a super-2 number, since 2×2100297² = 8822494976418, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

2100297 is a modest number, since divided by 297 gives 210 as remainder.

2100297 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2100227) 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, 350047 + ... + 350052.

It is an arithmetic number, because the mean of its divisors is an integer number (700100).

2^2100297 is an apocalyptic number.

It is an amenable number.

2100297 is a deficient number, since it is larger than the sum of its proper divisors (700103).

2100297 is an equidigital number, since it uses as much as digits as its factorization.

2100297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700102.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 2100297 is about 1449.2401457315. The cubic root of 2100297 is about 128.0639532302.

The spelling of 2100297 in words is "two million, one hundred thousand, two hundred ninety-seven".