11122457 has 4 divisors (see below), whose sum is σ = 11506020. Its totient is φ = 10738896.

The previous prime is 11122451. The next prime is 11122481. The reversal of 11122457 is 75422111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5285401 + 5837056 = 2299^2 + 2416^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122457 - 2⁶ = 11122393 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11122451) 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, 191738 + ... + 191795.

It is an arithmetic number, because the mean of its divisors is an integer number (2876505).

Almost surely, 2^11122457 is an apocalyptic number.

It is an amenable number.

11122457 is a deficient number, since it is larger than the sum of its proper divisors (383563).

11122457 is an equidigital number, since it uses as much as digits as its factorization.

11122457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383562.

The product of its digits is 560, while the sum is 23.

The square root of 11122457 is about 3335.0347824273. The cubic root of 11122457 is about 223.2202439747.

Adding to 11122457 its reverse (75422111), we get a palindrome (86544568).

The spelling of 11122457 in words is "eleven million, one hundred twenty-two thousand, four hundred fifty-seven".