881131247 has 2 divisors, whose sum is σ = 881131248. Its totient is φ = 881131246.

The previous prime is 881131211. The next prime is 881131309. The reversal of 881131247 is 742131188.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 881131247 - 2¹² = 881127151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (881131747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440565623 + 440565624.

It is an arithmetic number, because the mean of its divisors is an integer number (440565624).

Almost surely, 2^881131247 is an apocalyptic number.

881131247 is a deficient number, since it is larger than the sum of its proper divisors (1).

881131247 is an equidigital number, since it uses as much as digits as its factorization.

881131247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 35.

The square root of 881131247 is about 29683.8549888656. The cubic root of 881131247 is about 958.6944228059.

The spelling of 881131247 in words is "eight hundred eighty-one million, one hundred thirty-one thousand, two hundred forty-seven".