1086752221 has 2 divisors, whose sum is σ = 1086752222. Its totient is φ = 1086752220.

The previous prime is 1086752209. The next prime is 1086752239. The reversal of 1086752221 is 1222576801.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1007364121 + 79388100 = 31739^2 + 8910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1086752221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1086252221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543376110 + 543376111.

It is an arithmetic number, because the mean of its divisors is an integer number (543376111).

Almost surely, 2^1086752221 is an apocalyptic number.

It is an amenable number.

1086752221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1086752221 is an equidigital number, since it uses as much as digits as its factorization.

1086752221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1086752221 is about 32965.9251500697. The cubic root of 1086752221 is about 1028.1193006659.

The spelling of 1086752221 in words is "one billion, eighty-six million, seven hundred fifty-two thousand, two hundred twenty-one".