140408702087 has 4 divisors (see below), whose sum is σ = 140455337016. Its totient is φ = 140362067160.

The previous prime is 140408702041. The next prime is 140408702141. The reversal of 140408702087 is 780207804041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780207804041 = 367 ⋅2125906823.

It is a cyclic number.

It is not a de Polignac number, because 140408702087 - 2²⁰ = 140407653511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140408302087) 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 3 ways as a sum of consecutive naturals, for example, 23312948 + ... + 23318969.

It is an arithmetic number, because the mean of its divisors is an integer number (35113834254).

Almost surely, 2^140408702087 is an apocalyptic number.

140408702087 is a deficient number, since it is larger than the sum of its proper divisors (46634929).

140408702087 is an equidigital number, since it uses as much as digits as its factorization.

140408702087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46634928.

The product of its (nonzero) digits is 100352, while the sum is 41.

The spelling of 140408702087 in words is "one hundred forty billion, four hundred eight million, seven hundred two thousand, eighty-seven".