140448065 has 4 divisors (see below), whose sum is σ = 168537684. Its totient is φ = 112358448.

The previous prime is 140448059. The next prime is 140448071. The reversal of 140448065 is 560844041.

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

It is an interprime number because it is at equal distance from previous prime (140448059) and next prime (140448071).

It can be written as a sum of positive squares in 2 ways, for example, as 20830096 + 119617969 = 4564^2 + 10937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140448065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14044802 + ... + 14044811.

It is an arithmetic number, because the mean of its divisors is an integer number (42134421).

Almost surely, 2^140448065 is an apocalyptic number.

It is an amenable number.

140448065 is a deficient number, since it is larger than the sum of its proper divisors (28089619).

140448065 is an equidigital number, since it uses as much as digits as its factorization.

140448065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28089618.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 140448065 is about 11851.0786428915. The cubic root of 140448065 is about 519.8027666693.

The spelling of 140448065 in words is "one hundred forty million, four hundred forty-eight thousand, sixty-five".