140014855 has 4 divisors (see below), whose sum is σ = 168017832. Its totient is φ = 112011880.

The previous prime is 140014841. The next prime is 140014859. The reversal of 140014855 is 558410041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 558410041 = 7 ⋅79772863.

It is not a de Polignac number, because 140014855 - 2⁷ = 140014727 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 (140014859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14001481 + ... + 14001490.

It is an arithmetic number, because the mean of its divisors is an integer number (42004458).

Almost surely, 2^140014855 is an apocalyptic number.

140014855 is a deficient number, since it is larger than the sum of its proper divisors (28002977).

140014855 is an equidigital number, since it uses as much as digits as its factorization.

140014855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28002976.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 140014855 is about 11832.7872878709. The cubic root of 140014855 is about 519.2677748927.

Adding to 140014855 its reverse (558410041), we get a palindrome (698424896).

The spelling of 140014855 in words is "one hundred forty million, fourteen thousand, eight hundred fifty-five".