140318530 has 32 divisors (see below), whose sum is σ = 285042240. Its totient is φ = 49264320.

The previous prime is 140318489. The next prime is 140318533. The reversal of 140318530 is 35813041.

It is a super-2 number, since 2×140318530² = 39378579722721800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140318495 and 140318504.

It is not an unprimeable number, because it can be changed into a prime (140318533) 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, 18804 + ... + 25183.

It is an arithmetic number, because the mean of its divisors is an integer number (8907570).

Almost surely, 2^140318530 is an apocalyptic number.

140318530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140318530 is an abundant number, since it is smaller than the sum of its proper divisors (144723710).

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

140318530 is a wasteful number, since it uses less digits than its factorization.

140318530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44034.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 140318530 is about 11845.6122678399. The cubic root of 140318530 is about 519.6429131266.

The spelling of 140318530 in words is "one hundred forty million, three hundred eighteen thousand, five hundred thirty".