140741721251 has 2 divisors, whose sum is σ = 140741721252. Its totient is φ = 140741721250.

The previous prime is 140741721217. The next prime is 140741721259. The reversal of 140741721251 is 152127147041.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (152127147041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140741721251 is a prime.

It is not a weakly prime, because it can be changed into another prime (140741721259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70370860625 + 70370860626.

It is an arithmetic number, because the mean of its divisors is an integer number (70370860626).

Almost surely, 2^140741721251 is an apocalyptic number.

140741721251 is a deficient number, since it is larger than the sum of its proper divisors (1).

140741721251 is an equidigital number, since it uses as much as digits as its factorization.

140741721251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 35.

Adding to 140741721251 its reverse (152127147041), we get a palindrome (292868868292).

The spelling of 140741721251 in words is "one hundred forty billion, seven hundred forty-one million, seven hundred twenty-one thousand, two hundred fifty-one".