11512738 has 4 divisors (see below), whose sum is σ = 17269110. Its totient is φ = 5756368.

The previous prime is 11512733. The next prime is 11512769. The reversal of 11512738 is 83721511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83721511 = 311 ⋅269201.

It can be written as a sum of positive squares in only one way, i.e., 11512449 + 289 = 3393^2 + 17^2 .

It is not an unprimeable number, because it can be changed into a prime (11512733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2878183 + ... + 2878186.

Almost surely, 2^11512738 is an apocalyptic number.

11512738 is a deficient number, since it is larger than the sum of its proper divisors (5756372).

11512738 is an equidigital number, since it uses as much as digits as its factorization.

11512738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756371.

The product of its digits is 1680, while the sum is 28.

The square root of 11512738 is about 3393.0425874132. The cubic root of 11512738 is about 225.8011799862.

The spelling of 11512738 in words is "eleven million, five hundred twelve thousand, seven hundred thirty-eight".