140145459 has 4 divisors (see below), whose sum is σ = 186860616. Its totient is φ = 93430304.

The previous prime is 140145449. The next prime is 140145491. The reversal of 140145459 is 954541041.

140145459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140145459 - 2⁴ = 140145443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140145449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23357574 + ... + 23357579.

It is an arithmetic number, because the mean of its divisors is an integer number (46715154).

Almost surely, 2^140145459 is an apocalyptic number.

140145459 is a deficient number, since it is larger than the sum of its proper divisors (46715157).

140145459 is an equidigital number, since it uses as much as digits as its factorization.

140145459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46715156.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 140145459 is about 11838.3047350539. The cubic root of 140145459 is about 519.4291800824.

The spelling of 140145459 in words is "one hundred forty million, one hundred forty-five thousand, four hundred fifty-nine".