11129457 has 4 divisors (see below), whose sum is σ = 14839280. Its totient is φ = 7419636.

The previous prime is 11129449. The next prime is 11129467. The reversal of 11129457 is 75492111.

11129457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11129457 - 2³ = 11129449 is a prime.

It is a super-2 number, since 2×11129457² = 247729626229698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11129467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1854907 + ... + 1854912.

It is an arithmetic number, because the mean of its divisors is an integer number (3709820).

Almost surely, 2^11129457 is an apocalyptic number.

It is an amenable number.

11129457 is a deficient number, since it is larger than the sum of its proper divisors (3709823).

11129457 is an equidigital number, since it uses as much as digits as its factorization.

11129457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709822.

The product of its digits is 2520, while the sum is 30.

The square root of 11129457 is about 3336.0840816742. The cubic root of 11129457 is about 223.2670625876.

The spelling of 11129457 in words is "eleven million, one hundred twenty-nine thousand, four hundred fifty-seven".