140227418 has 4 divisors (see below), whose sum is σ = 210341130. Its totient is φ = 70113708.

The previous prime is 140227403. The next prime is 140227457. The reversal of 140227418 is 814722041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 814722041 = 7 ⋅116388863.

It can be written as a sum of positive squares in only one way, i.e., 107474689 + 32752729 = 10367^2 + 5723^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35056853 + ... + 35056856.

Almost surely, 2^140227418 is an apocalyptic number.

140227418 is a deficient number, since it is larger than the sum of its proper divisors (70113712).

140227418 is an equidigital number, since it uses as much as digits as its factorization.

140227418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70113711.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 140227418 is about 11841.7658311588. The cubic root of 140227418 is about 519.5304168029.

Adding to 140227418 its reverse (814722041), we get a palindrome (954949459).

The spelling of 140227418 in words is "one hundred forty million, two hundred twenty-seven thousand, four hundred eighteen".