140606918 has 4 divisors (see below), whose sum is σ = 210910380. Its totient is φ = 70303458.

The previous prime is 140606899. The next prime is 140606929. The reversal of 140606918 is 819606041.

140606918 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: 819606041 = 2131 ⋅384611.

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, 35151728 + ... + 35151731.

It is an arithmetic number, because the mean of its divisors is an integer number (52727595).

Almost surely, 2^140606918 is an apocalyptic number.

140606918 is a deficient number, since it is larger than the sum of its proper divisors (70303462).

140606918 is an equidigital number, since it uses as much as digits as its factorization.

140606918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70303461.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 140606918 is about 11857.7787970598. The cubic root of 140606918 is about 519.9986661701.

The spelling of 140606918 in words is "one hundred forty million, six hundred six thousand, nine hundred eighteen".