140322987 has 24 divisors (see below), whose sum is σ = 232527360. Its totient is φ = 79878960.

The previous prime is 140322953. The next prime is 140323021. The reversal of 140322987 is 789223041.

It is an interprime number because it is at equal distance from previous prime (140322953) and next prime (140323021).

It is not a de Polignac number, because 140322987 - 2⁸ = 140322731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140322587) 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 in 23 ways as a sum of consecutive naturals, for example, 12964 + ... + 21182.

It is an arithmetic number, because the mean of its divisors is an integer number (9688640).

Almost surely, 2^140322987 is an apocalyptic number.

140322987 is a deficient number, since it is larger than the sum of its proper divisors (92204373).

140322987 is a wasteful number, since it uses less digits than its factorization.

140322987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8503 (or 8500 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 140322987 is about 11845.8003950767. The cubic root of 140322987 is about 519.6484149515.

The spelling of 140322987 in words is "one hundred forty million, three hundred twenty-two thousand, nine hundred eighty-seven".