2101357 has 2 divisors, whose sum is σ = 2101358. Its totient is φ = 2101356.

The previous prime is 2101327. The next prime is 2101391. The reversal of 2101357 is 7531012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1653796 + 447561 = 1286^2 + 669^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101357 - 2¹¹ = 2099309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050678 + 1050679.

It is an arithmetic number, because the mean of its divisors is an integer number (1050679).

2^2101357 is an apocalyptic number.

It is an amenable number.

2101357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101357 is an equidigital number, since it uses as much as digits as its factorization.

2101357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 2101357 is about 1449.6058084873. The cubic root of 2101357 is about 128.0854938282.

Adding to 2101357 its reverse (7531012), we get a palindrome (9632369).

It can be divided in two parts, 2101 and 357, that multiplied together give a palindrome (750057).

The spelling of 2101357 in words is "two million, one hundred one thousand, three hundred fifty-seven".