140320545 has 8 divisors (see below), whose sum is σ = 224512896. Its totient is φ = 74837616.

The previous prime is 140320517. The next prime is 140320571. The reversal of 140320545 is 545023041.

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

It is not a de Polignac number, because 140320545 - 2⁵ = 140320513 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 4677337 + ... + 4677366.

It is an arithmetic number, because the mean of its divisors is an integer number (28064112).

Almost surely, 2^140320545 is an apocalyptic number.

140320545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140320545 is a deficient number, since it is larger than the sum of its proper divisors (84192351).

140320545 is an equidigital number, since it uses as much as digits as its factorization.

140320545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9354711.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 140320545 is about 11845.6973201243. The cubic root of 140320545 is about 519.6454005041.

Adding to 140320545 its reverse (545023041), we get a palindrome (685343586).

The spelling of 140320545 in words is "one hundred forty million, three hundred twenty thousand, five hundred forty-five".