140030500 has 24 divisors (see below), whose sum is σ = 305827704. Its totient is φ = 56012000.

The previous prime is 140030497. The next prime is 140030507. The reversal of 140030500 is 5030041.

It can be written as a sum of positive squares in 4 ways, for example, as 1920996 + 138109504 = 1386^2 + 11752^2 .

It is not an unprimeable number, because it can be changed into a prime (140030507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139531 + ... + 140530.

It is an arithmetic number, because the mean of its divisors is an integer number (12742821).

Almost surely, 2^140030500 is an apocalyptic number.

140030500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140030500 is an abundant number, since it is smaller than the sum of its proper divisors (165797204).

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

140030500 is a wasteful number, since it uses less digits than its factorization.

140030500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280080 (or 280068 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 140030500 is about 11833.4483562485. The cubic root of 140030500 is about 519.2871148448.

Adding to 140030500 its reverse (5030041), we get a palindrome (145060541).

The spelling of 140030500 in words is "one hundred forty million, thirty thousand, five hundred".