140146918 has 4 divisors (see below), whose sum is σ = 210220380. Its totient is φ = 70073458.

The previous prime is 140146891. The next prime is 140146927. The reversal of 140146918 is 819641041.

140146918 is digitally balanced in base 2 and base 3, because in such bases 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: 819641041 = 23 ⋅35636567.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35036728 + ... + 35036731.

It is an arithmetic number, because the mean of its divisors is an integer number (52555095).

Almost surely, 2^140146918 is an apocalyptic number.

140146918 is a deficient number, since it is larger than the sum of its proper divisors (70073462).

140146918 is an equidigital number, since it uses as much as digits as its factorization.

140146918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70073461.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 140146918 is about 11838.3663568923. The cubic root of 140146918 is about 519.4309826013.

Adding to 140146918 its reverse (819641041), we get a palindrome (959787959).

The spelling of 140146918 in words is "one hundred forty million, one hundred forty-six thousand, nine hundred eighteen".