2051356 has 24 divisors (see below), whose sum is σ = 3852576. Its totient is φ = 952320.

The previous prime is 2051341. The next prime is 2051359. The reversal of 2051356 is 6531502.

It is a happy number.

It is a super-2 number, since 2×2051356² = 8416122877472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051359) 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, 6441 + ... + 6751.

It is an arithmetic number, because the mean of its divisors is an integer number (160524).

2^2051356 is an apocalyptic number.

It is an amenable number.

2051356 is a deficient number, since it is larger than the sum of its proper divisors (1801220).

2051356 is a wasteful number, since it uses less digits than its factorization.

2051356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2051356 is about 1432.2555637874. The cubic root of 2051356 is about 127.0614124214.

Adding to 2051356 its reverse (6531502), we get a palindrome (8582858).

The spelling of 2051356 in words is "two million, fifty-one thousand, three hundred fifty-six".