140780087 has 12 divisors (see below), whose sum is σ = 167251680. Its totient is φ = 118099296.

The previous prime is 140780071. The next prime is 140780089. The reversal of 140780087 is 780087041.

It is not a de Polignac number, because 140780087 - 2⁴ = 140780071 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 (140780089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28262 + ... + 32867.

It is an arithmetic number, because the mean of its divisors is an integer number (13937640).

Almost surely, 2^140780087 is an apocalyptic number.

140780087 is a deficient number, since it is larger than the sum of its proper divisors (26471593).

140780087 is an equidigital number, since it uses as much as digits as its factorization.

140780087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61190 (or 61183 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 140780087 is about 11865.0784658172. The cubic root of 140780087 is about 520.2120523215.

The spelling of 140780087 in words is "one hundred forty million, seven hundred eighty thousand, eighty-seven".