140525530 has 16 divisors (see below), whose sum is σ = 253410120. Its totient is φ = 56107072.

The previous prime is 140525527. The next prime is 140525531. The reversal of 140525530 is 35525041.

140525530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 43837641 + 96687889 = 6621^2 + 9833^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140525495 and 140525504.

It is not an unprimeable number, because it can be changed into a prime (140525531) 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, 7045 + ... + 18184.

Almost surely, 2^140525530 is an apocalyptic number.

140525530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140525530 is a deficient number, since it is larger than the sum of its proper divisors (112884590).

140525530 is a wasteful number, since it uses less digits than its factorization.

140525530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25793.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 140525530 is about 11854.3464602651. The cubic root of 140525530 is about 519.8983159162.

The spelling of 140525530 in words is "one hundred forty million, five hundred twenty-five thousand, five hundred thirty".