2102957 has 4 divisors (see below), whose sum is σ = 2106720. Its totient is φ = 2099196.

The previous prime is 2102941. The next prime is 2102999. The reversal of 2102957 is 7592012.

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 2102957 - 2⁴ = 2102941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102927) 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, 857 + ... + 2222.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

2^2102957 is an apocalyptic number.

It is an amenable number.

2102957 is a deficient number, since it is larger than the sum of its proper divisors (3763).

2102957 is an equidigital number, since it uses as much as digits as its factorization.

2102957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 2102957 is about 1450.1575776446. The cubic root of 2102957 is about 128.1179942233.

Adding to 2102957 its reverse (7592012), we get a palindrome (9694969).

The spelling of 2102957 in words is "two million, one hundred two thousand, nine hundred fifty-seven".