140486287 has 2 divisors, whose sum is σ = 140486288. Its totient is φ = 140486286.

The previous prime is 140486267. The next prime is 140486293. The reversal of 140486287 is 782684041.

It is a strong prime.

It is an emirp because it is prime and its reverse (782684041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140486287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140486267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70243143 + 70243144.

It is an arithmetic number, because the mean of its divisors is an integer number (70243144).

Almost surely, 2^140486287 is an apocalyptic number.

140486287 is a deficient number, since it is larger than the sum of its proper divisors (1).

140486287 is an equidigital number, since it uses as much as digits as its factorization.

140486287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 140486287 is about 11852.6911290221. The cubic root of 140486287 is about 519.8499160060.

The spelling of 140486287 in words is "one hundred forty million, four hundred eighty-six thousand, two hundred eighty-seven".