140843061 has 12 divisors (see below), whose sum is σ = 206227788. Its totient is φ = 92608704.

The previous prime is 140843057. The next prime is 140843063. The reversal of 140843061 is 160348041.

It can be written as a sum of positive squares in 2 ways, for example, as 123076836 + 17766225 = 11094^2 + 4215^2 .

It is not a de Polignac number, because 140843061 - 2² = 140843057 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140843063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106530 + ... + 107843.

It is an arithmetic number, because the mean of its divisors is an integer number (17185649).

Almost surely, 2^140843061 is an apocalyptic number.

It is an amenable number.

140843061 is a deficient number, since it is larger than the sum of its proper divisors (65384727).

140843061 is a wasteful number, since it uses less digits than its factorization.

140843061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214452 (or 214449 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 140843061 is about 11867.7319231604. The cubic root of 140843061 is about 520.2896081534.

The spelling of 140843061 in words is "one hundred forty million, eight hundred forty-three thousand, sixty-one".