140292587 has 2 divisors, whose sum is σ = 140292588. Its totient is φ = 140292586.

The previous prime is 140292541. The next prime is 140292601. The reversal of 140292587 is 785292041.

It is a strong prime.

It is an emirp because it is prime and its reverse (785292041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140292587 - 2⁸ = 140292331 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 140292587.

It is not a weakly prime, because it can be changed into another prime (140292527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70146293 + 70146294.

It is an arithmetic number, because the mean of its divisors is an integer number (70146294).

Almost surely, 2^140292587 is an apocalyptic number.

140292587 is a deficient number, since it is larger than the sum of its proper divisors (1).

140292587 is an equidigital number, since it uses as much as digits as its factorization.

140292587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 140292587 is about 11844.5171704042. The cubic root of 140292587 is about 519.6108861686.

The spelling of 140292587 in words is "one hundred forty million, two hundred ninety-two thousand, five hundred eighty-seven".