140314891 has 4 divisors (see below), whose sum is σ = 143578072. Its totient is φ = 137051712.

The previous prime is 140314883. The next prime is 140314901. The reversal of 140314891 is 198413041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 198413041 = 29 ⋅6841829.

It is a cyclic number.

It is not a de Polignac number, because 140314891 - 2³ = 140314883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140314861) 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 3 ways as a sum of consecutive naturals, for example, 1631526 + ... + 1631611.

It is an arithmetic number, because the mean of its divisors is an integer number (35894518).

Almost surely, 2^140314891 is an apocalyptic number.

140314891 is a deficient number, since it is larger than the sum of its proper divisors (3263181).

140314891 is an equidigital number, since it uses as much as digits as its factorization.

140314891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263180.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 140314891 is about 11845.4586656659. The cubic root of 140314891 is about 519.6384209736.

The spelling of 140314891 in words is "one hundred forty million, three hundred fourteen thousand, eight hundred ninety-one".