2113457 has 12 divisors (see below), whose sum is σ = 2298816. Its totient is φ = 1942080.

The previous prime is 2113451. The next prime is 2113459. The reversal of 2113457 is 7543112.

2113457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2113457 - 2⁶ = 2113393 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20468 + ... + 20570.

It is an arithmetic number, because the mean of its divisors is an integer number (191568).

2^2113457 is an apocalyptic number.

It is an amenable number.

2113457 is a deficient number, since it is larger than the sum of its proper divisors (185359).

2113457 is a wasteful number, since it uses less digits than its factorization.

2113457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 191 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 2113457 is about 1453.7733661063. The cubic root of 2113457 is about 128.3308700638.

Adding to 2113457 its reverse (7543112), we get a palindrome (9656569).

The spelling of 2113457 in words is "two million, one hundred thirteen thousand, four hundred fifty-seven".