140354818 has 4 divisors (see below), whose sum is σ = 210532230. Its totient is φ = 70177408.

The previous prime is 140354813. The next prime is 140354827. The reversal of 140354818 is 818453041.

140354818 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in only one way, i.e., 75116889 + 65237929 = 8667^2 + 8077^2 .

It is not an unprimeable number, because it can be changed into a prime (140354813) 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 as a sum of consecutive naturals, namely, 35088703 + ... + 35088706.

Almost surely, 2^140354818 is an apocalyptic number.

140354818 is a deficient number, since it is larger than the sum of its proper divisors (70177412).

140354818 is an equidigital number, since it uses as much as digits as its factorization.

140354818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70177411.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 140354818 is about 11847.1438752131. The cubic root of 140354818 is about 519.6877044946.

The spelling of 140354818 in words is "one hundred forty million, three hundred fifty-four thousand, eight hundred eighteen".