2100357 has 16 divisors (see below), whose sum is σ = 3556480. Its totient is φ = 1200096.

The previous prime is 2100353. The next prime is 2100377. The reversal of 2100357 is 7530012.

It is not a de Polignac number, because 2100357 - 2² = 2100353 is a prime.

It is a super-2 number, since 2×2100357² = 8822999054898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5368 + ... + 5745.

It is an arithmetic number, because the mean of its divisors is an integer number (222280).

2^2100357 is an apocalyptic number.

2100357 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2100357 is a deficient number, since it is larger than the sum of its proper divisors (1456123).

2100357 is a wasteful number, since it uses less digits than its factorization.

2100357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11129 (or 11123 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 2100357 is about 1449.2608460867. The cubic root of 2100357 is about 128.0651727028.

Adding to 2100357 its reverse (7530012), we get a palindrome (9630369).

It can be divided in two parts, 2100 and 357, that multiplied together give a triangular number (749700 = T₁₂₂₄).

The spelling of 2100357 in words is "two million, one hundred thousand, three hundred fifty-seven".