140511040 has 56 divisors (see below), whose sum is σ = 335612232. Its totient is φ = 56033280.

The previous prime is 140511031. The next prime is 140511047. The reversal of 140511040 is 40115041.

It can be written as a sum of positive squares in 4 ways, for example, as 12730624 + 127780416 = 3568^2 + 11304^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140511047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184260 + ... + 185020.

Almost surely, 2^140511040 is an apocalyptic number.

140511040 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 140511040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167806116).

140511040 is an abundant number, since it is smaller than the sum of its proper divisors (195101192).

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

140511040 is an equidigital number, since it uses as much as digits as its factorization.

140511040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 140511040 is about 11853.7352762747. The cubic root of 140511040 is about 519.8804458880.

Adding to 140511040 its reverse (40115041), we get a palindrome (180626081).

The spelling of 140511040 in words is "one hundred forty million, five hundred eleven thousand, forty".