11513457 has 12 divisors (see below), whose sum is σ = 16779204. Its totient is φ = 7607040.

The previous prime is 11513441. The next prime is 11513461. The reversal of 11513457 is 75431511.

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 11029041 = 696^2 + 3321^2 .

It is not a de Polignac number, because 11513457 - 2⁴ = 11513441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11513457.

It is not an unprimeable number, because it can be changed into a prime (11513417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4644 + ... + 6677.

It is an arithmetic number, because the mean of its divisors is an integer number (1398267).

Almost surely, 2^11513457 is an apocalyptic number.

It is an amenable number.

11513457 is a deficient number, since it is larger than the sum of its proper divisors (5265747).

11513457 is a wasteful number, since it uses less digits than its factorization.

11513457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11440 (or 11437 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 11513457 is about 3393.1485378627. The cubic root of 11513457 is about 225.8058805092.

Adding to 11513457 its reverse (75431511), we get a palindrome (86944968).

The spelling of 11513457 in words is "eleven million, five hundred thirteen thousand, four hundred fifty-seven".