11913057 has 48 divisors (see below), whose sum is σ = 20442240. Its totient is φ = 6614784.

The previous prime is 11913053. The next prime is 11913061. The reversal of 11913057 is 75031911.

It is a happy number.

11913057 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11913053) and next prime (11913061).

It is not a de Polignac number, because 11913057 - 2² = 11913053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11913057.

It is not an unprimeable number, because it can be changed into a prime (11913053) 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 47 ways as a sum of consecutive naturals, for example, 51013 + ... + 51245.

It is an arithmetic number, because the mean of its divisors is an integer number (425880).

Almost surely, 2^11913057 is an apocalyptic number.

It is an amenable number.

11913057 is a deficient number, since it is larger than the sum of its proper divisors (8529183).

11913057 is a wasteful number, since it uses less digits than its factorization.

11913057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 11913057 is about 3451.5296608895. The cubic root of 11913057 is about 228.3885917136.

Adding to 11913057 its reverse (75031911), we get a palindrome (86944968).

The spelling of 11913057 in words is "eleven million, nine hundred thirteen thousand, fifty-seven".