140554171 has 2 divisors, whose sum is σ = 140554172. Its totient is φ = 140554170.

The previous prime is 140554129. The next prime is 140554199. The reversal of 140554171 is 171455041.

It is an a-pointer prime, because the next prime (140554199) can be obtained adding 140554171 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140554171 - 2¹⁷ = 140423099 is a prime.

It is not a weakly prime, because it can be changed into another prime (140554121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70277085 + 70277086.

It is an arithmetic number, because the mean of its divisors is an integer number (70277086).

Almost surely, 2^140554171 is an apocalyptic number.

140554171 is a deficient number, since it is larger than the sum of its proper divisors (1).

140554171 is an equidigital number, since it uses as much as digits as its factorization.

140554171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 140554171 is about 11855.5544366343. The cubic root of 140554171 is about 519.9336342818.

The spelling of 140554171 in words is "one hundred forty million, five hundred fifty-four thousand, one hundred seventy-one".