140512010281 has 2 divisors, whose sum is σ = 140512010282. Its totient is φ = 140512010280.

The previous prime is 140512010227. The next prime is 140512010293. The reversal of 140512010281 is 182010215041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123116774400 + 17395235881 = 350880^2 + 131891^2 .

It is a cyclic number.

It is not a de Polignac number, because 140512010281 - 2³³ = 131922075689 is a prime.

It is a super-2 number, since 2×140512010281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140512010381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70256005140 + 70256005141.

It is an arithmetic number, because the mean of its divisors is an integer number (70256005141).

Almost surely, 2^140512010281 is an apocalyptic number.

It is an amenable number.

140512010281 is a deficient number, since it is larger than the sum of its proper divisors (1).

140512010281 is an equidigital number, since it uses as much as digits as its factorization.

140512010281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 25.

The spelling of 140512010281 in words is "one hundred forty billion, five hundred twelve million, ten thousand, two hundred eighty-one".