140266336741281 has 27 divisors (see below), whose sum is σ = 204722225559891. Its totient is φ = 92544587420544.

The previous prime is 140266336741273. The next prime is 140266336741309. The reversal of 140266336741281 is 182147633662041.

The square root of 140266336741281 is 11843409.

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

140266336741281 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 66 + 33 + 67 + 412 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 62984937053025 + 77281399688256 = 7936305^2 + 8790984^2 .

It is not a de Polignac number, because 140266336741281 - 2³ = 140266336741273 is a prime.

It is a super-2 number, since 2×140266336741281² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140266336741681) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3446411670 + ... + 3446452368.

Almost surely, 2^{140266336741281} is an apocalyptic number.

140266336741281 is the 11843409-th square number.

140266336741281 is the 5921705-th centered octagonal number.

It is an amenable number.

140266336741281 is a deficient number, since it is larger than the sum of its proper divisors (64455888818610).

140266336741281 is an frugal number, since it uses more digits than its factorization.

140266336741281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81598 (or 40799 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 140266336741281 in words is "one hundred forty trillion, two hundred sixty-six billion, three hundred thirty-six million, seven hundred forty-one thousand, two hundred eighty-one".