140266418 has 4 divisors (see below), whose sum is σ = 210399630. Its totient is φ = 70133208.

The previous prime is 140266391. The next prime is 140266457. The reversal of 140266418 is 814662041.

140266418 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, and also an emirpimes, since its reverse is a distinct semiprime: 814662041 = 37 ⋅22017893.

It can be written as a sum of positive squares in only one way, i.e., 79691329 + 60575089 = 8927^2 + 7783^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35066603 + ... + 35066606.

Almost surely, 2^140266418 is an apocalyptic number.

140266418 is a deficient number, since it is larger than the sum of its proper divisors (70133212).

140266418 is an equidigital number, since it uses as much as digits as its factorization.

140266418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70133211.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 140266418 is about 11843.4124305455. The cubic root of 140266418 is about 519.5785762105.

The spelling of 140266418 in words is "one hundred forty million, two hundred sixty-six thousand, four hundred eighteen".