140053918 has 4 divisors (see below), whose sum is σ = 210080880. Its totient is φ = 70026958.

The previous prime is 140053913. The next prime is 140053933. The reversal of 140053918 is 819350041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 819350041 = 193 ⋅4245337.

It is a self number, because there is not a number n which added to its sum of digits gives 140053918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140053913) by changing a digit.

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, 35013478 + ... + 35013481.

It is an arithmetic number, because the mean of its divisors is an integer number (52520220).

Almost surely, 2^140053918 is an apocalyptic number.

140053918 is a deficient number, since it is larger than the sum of its proper divisors (70026962).

140053918 is an equidigital number, since it uses as much as digits as its factorization.

140053918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70026961.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 140053918 is about 11834.4377982226. The cubic root of 140053918 is about 519.3160608907.

The spelling of 140053918 in words is "one hundred forty million, fifty-three thousand, nine hundred eighteen".