140378087 has 2 divisors, whose sum is σ = 140378088. Its totient is φ = 140378086.

The previous prime is 140378081. The next prime is 140378107. The reversal of 140378087 is 780873041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140378087 - 2¹⁰ = 140377063 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140378087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140378081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70189043 + 70189044.

It is an arithmetic number, because the mean of its divisors is an integer number (70189044).

Almost surely, 2^140378087 is an apocalyptic number.

140378087 is a deficient number, since it is larger than the sum of its proper divisors (1).

140378087 is an equidigital number, since it uses as much as digits as its factorization.

140378087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 140378087 is about 11848.1258855568. The cubic root of 140378087 is about 519.7164220576.

The spelling of 140378087 in words is "one hundred forty million, three hundred seventy-eight thousand, eighty-seven".