140242873 has 2 divisors, whose sum is σ = 140242874. Its totient is φ = 140242872.

The previous prime is 140242847. The next prime is 140242897. The reversal of 140242873 is 378242041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100641024 + 39601849 = 10032^2 + 6293^2 .

It is a cyclic number.

It is not a de Polignac number, because 140242873 - 2⁵ = 140242841 is a prime.

It is not a weakly prime, because it can be changed into another prime (140242573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70121436 + 70121437.

It is an arithmetic number, because the mean of its divisors is an integer number (70121437).

Almost surely, 2^140242873 is an apocalyptic number.

It is an amenable number.

140242873 is a deficient number, since it is larger than the sum of its proper divisors (1).

140242873 is an equidigital number, since it uses as much as digits as its factorization.

140242873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 140242873 is about 11842.4183763284. The cubic root of 140242873 is about 519.5495025797.

The spelling of 140242873 in words is "one hundred forty million, two hundred forty-two thousand, eight hundred seventy-three".