140711881 has 2 divisors, whose sum is σ = 140711882. Its totient is φ = 140711880.

The previous prime is 140711863. The next prime is 140711903. The reversal of 140711881 is 188117041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89946256 + 50765625 = 9484^2 + 7125^2 .

It is a cyclic number.

It is not a de Polignac number, because 140711881 - 2¹⁵ = 140679113 is a prime.

It is a super-2 number, since 2×140711881² = 39599666909116322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140711381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70355940 + 70355941.

It is an arithmetic number, because the mean of its divisors is an integer number (70355941).

Almost surely, 2^140711881 is an apocalyptic number.

It is an amenable number.

140711881 is a deficient number, since it is larger than the sum of its proper divisors (1).

140711881 is an equidigital number, since it uses as much as digits as its factorization.

140711881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 31.

The square root of 140711881 is about 11862.2038846076. The cubic root of 140711881 is about 520.1280269084.

The spelling of 140711881 in words is "one hundred forty million, seven hundred eleven thousand, eight hundred eighty-one".