140430215 has 8 divisors (see below), whose sum is σ = 168883008. Its totient is φ = 112099680.

The previous prime is 140430211. The next prime is 140430229. The reversal of 140430215 is 512034041.

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

It is not a de Polignac number, because 140430215 - 2² = 140430211 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 (140430211) 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, 28016 + ... + 32645.

It is an arithmetic number, because the mean of its divisors is an integer number (21110376).

Almost surely, 2^140430215 is an apocalyptic number.

140430215 is a deficient number, since it is larger than the sum of its proper divisors (28452793).

140430215 is an equidigital number, since it uses as much as digits as its factorization.

140430215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61129.

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

The square root of 140430215 is about 11850.3255229551. The cubic root of 140430215 is about 519.7807445966.

Adding to 140430215 its reverse (512034041), we get a palindrome (652464256).

The spelling of 140430215 in words is "one hundred forty million, four hundred thirty thousand, two hundred fifteen".