11668149 has 24 divisors (see below), whose sum is σ = 17489472. Its totient is φ = 7490880.

The previous prime is 11668127. The next prime is 11668157. The reversal of 11668149 is 94186611.

It is a happy number.

It is not a de Polignac number, because 11668149 - 2⁷ = 11668021 is a prime.

It is a super-2 number, since 2×11668149² = 272291402172402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11668159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37854 + ... + 38160.

It is an arithmetic number, because the mean of its divisors is an integer number (728728).

Almost surely, 2^11668149 is an apocalyptic number.

It is an amenable number.

11668149 is a deficient number, since it is larger than the sum of its proper divisors (5821323).

11668149 is a wasteful number, since it uses less digits than its factorization.

11668149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 454 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 11668149 is about 3415.8672398089. The cubic root of 11668149 is about 226.8126757750.

It can be divided in two parts, 116 and 68149, that added together give a triangular number (68265 = T₃₆₉).

The spelling of 11668149 in words is "eleven million, six hundred sixty-eight thousand, one hundred forty-nine".