140105525 has 48 divisors (see below), whose sum is σ = 216355200. Its totient is φ = 87816960.

The previous prime is 140105521. The next prime is 140105557. The reversal of 140105525 is 525501041.

It is a happy number.

It is not a de Polignac number, because 140105525 - 2² = 140105521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140105525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140105521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95699 + ... + 97151.

It is an arithmetic number, because the mean of its divisors is an integer number (4507400).

Almost surely, 2^140105525 is an apocalyptic number.

It is an amenable number.

140105525 is a deficient number, since it is larger than the sum of its proper divisors (76249675).

140105525 is a wasteful number, since it uses less digits than its factorization.

140105525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1513 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 140105525 is about 11836.6179713633. The cubic root of 140105525 is about 519.3798388347.

Adding to 140105525 its reverse (525501041), we get a palindrome (665606566).

The spelling of 140105525 in words is "one hundred forty million, one hundred five thousand, five hundred twenty-five".