140133665 has 8 divisors (see below), whose sum is σ = 192183360. Its totient is φ = 96091632.

The previous prime is 140133661. The next prime is 140133677. The reversal of 140133665 is 566331041.

It is a happy number.

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

It is not a de Polignac number, because 140133665 - 2² = 140133661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140133661) 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, 2001875 + ... + 2001944.

It is an arithmetic number, because the mean of its divisors is an integer number (24022920).

Almost surely, 2^140133665 is an apocalyptic number.

It is an amenable number.

140133665 is a deficient number, since it is larger than the sum of its proper divisors (52049695).

140133665 is an equidigital number, since it uses as much as digits as its factorization.

140133665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003831.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 140133665 is about 11837.8065958183. The cubic root of 140133665 is about 519.4146087466.

The spelling of 140133665 in words is "one hundred forty million, one hundred thirty-three thousand, six hundred sixty-five".