140018065 has 8 divisors (see below), whose sum is σ = 183296448. Its totient is φ = 101831280.

The previous prime is 140018063. The next prime is 140018107. The reversal of 140018065 is 560810041.

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

It is not a de Polignac number, because 140018065 - 2¹ = 140018063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140018063) 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, 1272837 + ... + 1272946.

It is an arithmetic number, because the mean of its divisors is an integer number (22912056).

Almost surely, 2^140018065 is an apocalyptic number.

It is an amenable number.

140018065 is a deficient number, since it is larger than the sum of its proper divisors (43278383).

140018065 is a wasteful number, since it uses less digits than its factorization.

140018065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545799.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 140018065 is about 11832.9229271554. The cubic root of 140018065 is about 519.2717431307.

The spelling of 140018065 in words is "one hundred forty million, eighteen thousand, sixty-five".