141382768081 has 3 divisors (see below), whose sum is σ = 141383144091. Its totient is φ = 141382392072.

The previous prime is 141382768069. The next prime is 141382768097. The reversal of 141382768081 is 180867283141.

The square root of 141382768081 is 376009.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 113440302481 + 27942465600 = 336809^2 + 167160^2 .

It is not a de Polignac number, because 141382768081 - 2²¹ = 141380670929 is a prime.

It is a super-2 number, since 2×141382768081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141382768381) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 188005 + ... + 564013.

It is an arithmetic number, because the mean of its divisors is an integer number (47127714697).

Almost surely, 2^141382768081 is an apocalyptic number.

141382768081 is the 376009-th square number.

141382768081 is the 188005-th centered octagonal number.

It is an amenable number.

141382768081 is a deficient number, since it is larger than the sum of its proper divisors (376010).

141382768081 is an frugal number, since it uses more digits than its factorization.

141382768081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752018 (or 376009 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

Multiplying 141382768081 by its sum of digits (49), we get a square (6927755635969 = 2632063²).

The spelling of 141382768081 in words is "one hundred forty-one billion, three hundred eighty-two million, seven hundred sixty-eight thousand, eighty-one".