140128270 has 32 divisors (see below), whose sum is σ = 256398048. Its totient is φ = 55133568.

The previous prime is 140128253. The next prime is 140128273. The reversal of 140128270 is 72821041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140128273) 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, 184732 + ... + 185488.

It is an arithmetic number, because the mean of its divisors is an integer number (8012439).

Almost surely, 2^140128270 is an apocalyptic number.

140128270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140128270 is a deficient number, since it is larger than the sum of its proper divisors (116269778).

140128270 is a wasteful number, since it uses less digits than its factorization.

140128270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 140128270 is about 11837.5787220191. The cubic root of 140128270 is about 519.4079430208.

The spelling of 140128270 in words is "one hundred forty million, one hundred twenty-eight thousand, two hundred seventy".