2101356 has 24 divisors (see below), whose sum is σ = 5448240. Its totient is φ = 700416.

The previous prime is 2101327. The next prime is 2101357. The reversal of 2101356 is 6531012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2101357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9621 + ... + 9836.

It is an arithmetic number, because the mean of its divisors is an integer number (227010).

2^2101356 is an apocalyptic number.

It is an amenable number.

2101356 is an abundant number, since it is smaller than the sum of its proper divisors (3346884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101356 is a wasteful number, since it uses less digits than its factorization.

2101356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470 (or 19462 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2101356 is about 1449.6054635659. The cubic root of 2101356 is about 128.0854735103.

Adding to 2101356 its reverse (6531012), we get a palindrome (8632368).

The spelling of 2101356 in words is "two million, one hundred one thousand, three hundred fifty-six".