131366849 has 4 divisors (see below), whose sum is σ = 134421936. Its totient is φ = 128311764.

The previous prime is 131366831. The next prime is 131366861. The reversal of 131366849 is 948663131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131366849 - 2¹² = 131362753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131366819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1527479 + ... + 1527564.

It is an arithmetic number, because the mean of its divisors is an integer number (33605484).

Almost surely, 2^131366849 is an apocalyptic number.

It is an amenable number.

131366849 is a deficient number, since it is larger than the sum of its proper divisors (3055087).

131366849 is an equidigital number, since it uses as much as digits as its factorization.

131366849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055086.

The product of its digits is 93312, while the sum is 41.

The square root of 131366849 is about 11461.5378113061. The cubic root of 131366849 is about 508.3489462433.

The spelling of 131366849 in words is "one hundred thirty-one million, three hundred sixty-six thousand, eight hundred forty-nine".