140145452 has 12 divisors (see below), whose sum is σ = 248010840. Its totient is φ = 69285216.

The previous prime is 140145449. The next prime is 140145491. The reversal of 140145452 is 254541041.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 196478 + ... + 197189.

It is an arithmetic number, because the mean of its divisors is an integer number (20667570).

Almost surely, 2^140145452 is an apocalyptic number.

It is an amenable number.

140145452 is a deficient number, since it is larger than the sum of its proper divisors (107865388).

140145452 is a wasteful number, since it uses less digits than its factorization.

140145452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393760 (or 393758 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 140145452 is about 11838.3044394035. The cubic root of 140145452 is about 519.4291714342.

Adding to 140145452 its reverse (254541041), we get a palindrome (394686493).

The spelling of 140145452 in words is "one hundred forty million, one hundred forty-five thousand, four hundred fifty-two".