11516949 has 6 divisors (see below), whose sum is σ = 16635606. Its totient is φ = 7677960.

The previous prime is 11516933. The next prime is 11517017. The reversal of 11516949 is 94961511.

It can be written as a sum of positive squares in only one way, i.e., 10284849 + 1232100 = 3207^2 + 1110^2 .

It is not a de Polignac number, because 11516949 - 2⁴ = 11516933 is a prime.

It is a super-2 number, since 2×11516949² = 265280228537202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11516909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 639822 + ... + 639839.

It is an arithmetic number, because the mean of its divisors is an integer number (2772601).

Almost surely, 2^11516949 is an apocalyptic number.

It is an amenable number.

11516949 is a deficient number, since it is larger than the sum of its proper divisors (5118657).

11516949 is a wasteful number, since it uses less digits than its factorization.

11516949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279667 (or 1279664 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 11516949 is about 3393.6630651849. The cubic root of 11516949 is about 225.8287069702.

It can be divided in two parts, 1151 and 6949, that added together give a square (8100 = 90²).

The spelling of 11516949 in words is "eleven million, five hundred sixteen thousand, nine hundred forty-nine".