140549755 has 4 divisors (see below), whose sum is σ = 168659712. Its totient is φ = 112439800.

The previous prime is 140549729. The next prime is 140549767. The reversal of 140549755 is 557945041.

140549755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557945041 = 18691 ⋅29851.

It is not a de Polignac number, because 140549755 - 2⁹ = 140549243 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14054971 + ... + 14054980.

It is an arithmetic number, because the mean of its divisors is an integer number (42164928).

Almost surely, 2^140549755 is an apocalyptic number.

140549755 is a deficient number, since it is larger than the sum of its proper divisors (28109957).

140549755 is an equidigital number, since it uses as much as digits as its factorization.

140549755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28109956.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 140549755 is about 11855.3681933544. The cubic root of 140549755 is about 519.9281890480.

The spelling of 140549755 in words is "one hundred forty million, five hundred forty-nine thousand, seven hundred fifty-five".