8661149 has 8 divisors (see below), whose sum is σ = 9925440. Its totient is φ = 7403616.

The previous prime is 8661137. The next prime is 8661161. The reversal of 8661149 is 9411668.

It is an interprime number because it is at equal distance from previous prime (8661137) and next prime (8661161).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8661149 - 2¹² = 8657053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8661119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457 + ... + 4409.

It is an arithmetic number, because the mean of its divisors is an integer number (1240680).

Almost surely, 2^8661149 is an apocalyptic number.

It is an amenable number.

8661149 is a deficient number, since it is larger than the sum of its proper divisors (1264291).

8661149 is a wasteful number, since it uses less digits than its factorization.

8661149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379.

The product of its digits is 10368, while the sum is 35.

The square root of 8661149 is about 2942.9830104844. The cubic root of 8661149 is about 205.3644044054.

The spelling of 8661149 in words is "eight million, six hundred sixty-one thousand, one hundred forty-nine".