140661343 has 2 divisors, whose sum is σ = 140661344. Its totient is φ = 140661342.

The previous prime is 140661319. The next prime is 140661371. The reversal of 140661343 is 343166041.

It is an a-pointer prime, because the next prime (140661371) can be obtained adding 140661343 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (343166041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140661343 - 2⁹ = 140660831 is a prime.

It is a super-2 number, since 2×140661343² = 39571226829127298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140661943) 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, 70330671 + 70330672.

It is an arithmetic number, because the mean of its divisors is an integer number (70330672).

Almost surely, 2^140661343 is an apocalyptic number.

140661343 is a deficient number, since it is larger than the sum of its proper divisors (1).

140661343 is an equidigital number, since it uses as much as digits as its factorization.

140661343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 140661343 is about 11860.0734820658. The cubic root of 140661343 is about 520.0657498222.

The spelling of 140661343 in words is "one hundred forty million, six hundred sixty-one thousand, three hundred forty-three".