1350566861 has 6 divisors (see below), whose sum is σ = 1571067630. Its totient is φ = 1157628696.

The previous prime is 1350566851. The next prime is 1350566897. The reversal of 1350566861 is 1686650531.

It can be written as a sum of positive squares in only one way, i.e., 1322413225 + 28153636 = 36365^2 + 5306^2 .

It is not a de Polignac number, because 1350566861 - 2¹⁴ = 1350550477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350566821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13781246 + ... + 13781343.

It is an arithmetic number, because the mean of its divisors is an integer number (261844605).

Almost surely, 2^1350566861 is an apocalyptic number.

It is an amenable number.

1350566861 is a deficient number, since it is larger than the sum of its proper divisors (220500769).

1350566861 is an equidigital number, since it uses as much as digits as its factorization.

1350566861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27562603 (or 27562596 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 1350566861 is about 36750.0593332854. The cubic root of 1350566861 is about 1105.3641193367.

The spelling of 1350566861 in words is "one billion, three hundred fifty million, five hundred sixty-six thousand, eight hundred sixty-one".