140155340 has 48 divisors (see below), whose sum is σ = 327210240. Its totient is φ = 50077440.

The previous prime is 140155333. The next prime is 140155391. The reversal of 140155340 is 43551041.

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 in 15 ways as a sum of consecutive naturals, for example, 635 + ... + 16754.

It is an arithmetic number, because the mean of its divisors is an integer number (6816880).

Almost surely, 2^140155340 is an apocalyptic number.

140155340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140155340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163605120).

140155340 is an abundant number, since it is smaller than the sum of its proper divisors (187054900).

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

140155340 is a wasteful number, since it uses less digits than its factorization.

140155340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17442 (or 17440 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 140155340 is about 11838.7220594116. The cubic root of 140155340 is about 519.4413873018.

The spelling of 140155340 in words is "one hundred forty million, one hundred fifty-five thousand, three hundred forty".