140130321 has 8 divisors (see below), whose sum is σ = 186895200. Its totient is φ = 93392832.

The previous prime is 140130317. The next prime is 140130343. The reversal of 140130321 is 123031041.

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

It is not a de Polignac number, because 140130321 - 2² = 140130317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140130321.

It is not an unprimeable number, because it can be changed into a prime (140130391) 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, 15726 + ... + 22968.

It is an arithmetic number, because the mean of its divisors is an integer number (23361900).

Almost surely, 2^140130321 is an apocalyptic number.

It is an amenable number.

140130321 is a deficient number, since it is larger than the sum of its proper divisors (46764879).

140130321 is an equidigital number, since it uses as much as digits as its factorization.

140130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13695.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 140130321 is about 11837.6653525938. The cubic root of 140130321 is about 519.4104771287.

Adding to 140130321 its reverse (123031041), we get a palindrome (263161362).

The spelling of 140130321 in words is "one hundred forty million, one hundred thirty thousand, three hundred twenty-one".