1341730705561 has 9 divisors (see below), whose sum is σ = 1345991763231. Its totient is φ = 1337483105784.

The previous prime is 1341730705547. The next prime is 1341730705573. The reversal of 1341730705561 is 1655070371431.

The square root of 1341730705561 is 1158331.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 984820049161 + 356910656400 = 992381^2 + 597420^2 .

It is not a de Polignac number, because 1341730705561 - 2⁵ = 1341730705529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1341730705061) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 404255860 + ... + 404259178.

It is an arithmetic number, because the mean of its divisors is an integer number (149554640359).

Almost surely, 2^{1341730705561} is an apocalyptic number.

1341730705561 is the 1158331-st square number.

1341730705561 is the 579166-th centered octagonal number.

It is an amenable number.

1341730705561 is a deficient number, since it is larger than the sum of its proper divisors (4261057670).

1341730705561 is an frugal number, since it uses more digits than its factorization.

1341730705561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7336 (or 3668 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 1341730705561 in words is "one trillion, three hundred forty-one billion, seven hundred thirty million, seven hundred five thousand, five hundred sixty-one".