140432005 has 16 divisors (see below), whose sum is σ = 196692480. Its totient is φ = 94246272.

The previous prime is 140431999. The next prime is 140432009. The reversal of 140432005 is 500234041.

It is a cyclic number.

It is not a de Polignac number, because 140432005 - 2⁷ = 140431877 is a prime.

It is a super-3 number, since 3×140432005³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140432009) 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 15 ways as a sum of consecutive naturals, for example, 41040 + ... + 44329.

It is an arithmetic number, because the mean of its divisors is an integer number (12293280).

Almost surely, 2^140432005 is an apocalyptic number.

It is an amenable number.

140432005 is a deficient number, since it is larger than the sum of its proper divisors (56260475).

140432005 is an equidigital number, since it uses as much as digits as its factorization.

140432005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85428.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 140432005 is about 11850.4010480658. The cubic root of 140432005 is about 519.7829530567.

Adding to 140432005 its reverse (500234041), we get a palindrome (640666046).

The spelling of 140432005 in words is "one hundred forty million, four hundred thirty-two thousand, five".