140271918 has 32 divisors (see below), whose sum is σ = 284549760. Its totient is φ = 46094880.

The previous prime is 140271907. The next prime is 140271919. The reversal of 140271918 is 819172041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140271919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140196 + ... + 141192.

It is an arithmetic number, because the mean of its divisors is an integer number (8892180).

Almost surely, 2^140271918 is an apocalyptic number.

140271918 is an abundant number, since it is smaller than the sum of its proper divisors (144277842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140271918 is a wasteful number, since it uses less digits than its factorization.

140271918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 140271918 is about 11843.6446248610. The cubic root of 140271918 is about 519.5853672036.

The spelling of 140271918 in words is "one hundred forty million, two hundred seventy-one thousand, nine hundred eighteen".