140999965 has 8 divisors (see below), whose sum is σ = 171583488. Its totient is φ = 111210960.

The previous prime is 140999951. The next prime is 140999983. The reversal of 140999965 is 569999041.

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

It is not a de Polignac number, because 140999965 - 2¹⁹ = 140475677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198237 + ... + 198946.

It is an arithmetic number, because the mean of its divisors is an integer number (21447936).

Almost surely, 2^140999965 is an apocalyptic number.

It is an amenable number.

140999965 is a deficient number, since it is larger than the sum of its proper divisors (30583523).

140999965 is an equidigital number, since it uses as much as digits as its factorization.

140999965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397259.

The product of its (nonzero) digits is 787320, while the sum is 52.

The square root of 140999965 is about 11874.3406132720. The cubic root of 140999965 is about 520.4827432735.

The spelling of 140999965 in words is "one hundred forty million, nine hundred ninety-nine thousand, nine hundred sixty-five".