140387111 has 2 divisors, whose sum is σ = 140387112. Its totient is φ = 140387110.

The previous prime is 140387083. The next prime is 140387161. The reversal of 140387111 is 111783041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140387111 - 2¹⁰ = 140386087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140387161) 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, 70193555 + 70193556.

It is an arithmetic number, because the mean of its divisors is an integer number (70193556).

Almost surely, 2^140387111 is an apocalyptic number.

140387111 is a deficient number, since it is larger than the sum of its proper divisors (1).

140387111 is an equidigital number, since it uses as much as digits as its factorization.

140387111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 140387111 is about 11848.5066991583. The cubic root of 140387111 is about 519.7275582223.

The spelling of 140387111 in words is "one hundred forty million, three hundred eighty-seven thousand, one hundred eleven".