2107204257 has 4 divisors (see below), whose sum is σ = 2809605680. Its totient is φ = 1404802836.

The previous prime is 2107204223. The next prime is 2107204259. The reversal of 2107204257 is 7524027012.

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 2107204257 - 2¹⁰ = 2107203233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2107204259) 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, 351200707 + ... + 351200712.

It is an arithmetic number, because the mean of its divisors is an integer number (702401420).

Almost surely, 2^2107204257 is an apocalyptic number.

It is an amenable number.

2107204257 is a deficient number, since it is larger than the sum of its proper divisors (702401423).

2107204257 is an equidigital number, since it uses as much as digits as its factorization.

2107204257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702401422.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 2107204257 is about 45904.2945376574. The cubic root of 2107204257 is about 1282.0418779515.

The spelling of 2107204257 in words is "two billion, one hundred seven million, two hundred four thousand, two hundred fifty-seven".