140065306 has 8 divisors (see below), whose sum is σ = 210225204. Its totient is φ = 69990240.

The previous prime is 140065301. The next prime is 140065337. The reversal of 140065306 is 603560041.

It can be written as a sum of positive squares in 2 ways, for example, as 139358025 + 707281 = 11805^2 + 841^2 .

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

It is not an unprimeable number, because it can be changed into a prime (140065301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16905 + ... + 23788.

Almost surely, 2^140065306 is an apocalyptic number.

140065306 is a deficient number, since it is larger than the sum of its proper divisors (70159898).

140065306 is a wasteful number, since it uses less digits than its factorization.

140065306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42416.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 140065306 is about 11834.9189266340. The cubic root of 140065306 is about 519.3301359724.

The spelling of 140065306 in words is "one hundred forty million, sixty-five thousand, three hundred six".