140524013 has 8 divisors (see below), whose sum is σ = 163876800. Its totient is φ = 120448860.

The previous prime is 140524009. The next prime is 140524037. The reversal of 140524013 is 310425041.

It is not a de Polignac number, because 140524013 - 2² = 140524009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140524003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204503 + ... + 205188.

It is an arithmetic number, because the mean of its divisors is an integer number (20484600).

Almost surely, 2^140524013 is an apocalyptic number.

It is an amenable number.

140524013 is a deficient number, since it is larger than the sum of its proper divisors (23352787).

140524013 is an frugal number, since it uses more digits than its factorization.

140524013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409712 (or 409698 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140524013 is about 11854.2824751227. The cubic root of 140524013 is about 519.8964451088.

Adding to 140524013 its reverse (310425041), we get a palindrome (450949054).

The spelling of 140524013 in words is "one hundred forty million, five hundred twenty-four thousand, thirteen".