2051351 has 4 divisors (see below), whose sum is σ = 2054592. Its totient is φ = 2048112.

The previous prime is 2051341. The next prime is 2051359. The reversal of 2051351 is 1531502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2051351 - 2¹⁰ = 2050327 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 (2051359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (513648).

2^2051351 is an apocalyptic number.

2051351 is a deficient number, since it is larger than the sum of its proper divisors (3241).

2051351 is an equidigital number, since it uses as much as digits as its factorization.

2051351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 2051351 is about 1432.2538182878. The cubic root of 2051351 is about 127.0613091876.

Adding to 2051351 its reverse (1531502), we get a palindrome (3582853).

The spelling of 2051351 in words is "two million, fifty-one thousand, three hundred fifty-one".