11512769 has 2 divisors, whose sum is σ = 11512770. Its totient is φ = 11512768.

The previous prime is 11512733. The next prime is 11512789. The reversal of 11512769 is 96721511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11478544 + 34225 = 3388^2 + 185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11512769 is a prime.

It is a super-2 number, since 2×11512769² = 265087700094722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11512789) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5756384 + 5756385.

It is an arithmetic number, because the mean of its divisors is an integer number (5756385).

Almost surely, 2^11512769 is an apocalyptic number.

It is an amenable number.

11512769 is a deficient number, since it is larger than the sum of its proper divisors (1).

11512769 is an equidigital number, since it uses as much as digits as its factorization.

11512769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 32.

The square root of 11512769 is about 3393.0471555815. The cubic root of 11512769 is about 225.8013826554.

Adding to 11512769 its sum of digits (32), we get a triangular number (11512801 = T₄₇₉₈).

The spelling of 11512769 in words is "eleven million, five hundred twelve thousand, seven hundred sixty-nine".