140008915 has 8 divisors (see below), whose sum is σ = 168074208. Its totient is φ = 111964800.

The previous prime is 140008879. The next prime is 140008919. The reversal of 140008915 is 519800041.

It is a happy number.

140008915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140008915 - 2⁹ = 140008403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140008919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23490 + ... + 28840.

It is an arithmetic number, because the mean of its divisors is an integer number (21009276).

Almost surely, 2^140008915 is an apocalyptic number.

140008915 is a deficient number, since it is larger than the sum of its proper divisors (28065293).

140008915 is an equidigital number, since it uses as much as digits as its factorization.

140008915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10589.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 140008915 is about 11832.5362877111. The cubic root of 140008915 is about 519.2604316381.

Adding to 140008915 its reverse (519800041), we get a palindrome (659808956).

The spelling of 140008915 in words is "one hundred forty million, eight thousand, nine hundred fifteen".