140499969 has 8 divisors (see below), whose sum is σ = 188483232. Its totient is φ = 93091680.

The previous prime is 140499943. The next prime is 140500007. The reversal of 140499969 is 969994041.

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

It is not a de Polignac number, because 140499969 - 2¹⁷ = 140368897 is a prime.

It is a super-2 number, since 2×140499969² = 39480482578001922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140499869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143172 + ... + 144149.

It is an arithmetic number, because the mean of its divisors is an integer number (23560404).

Almost surely, 2^140499969 is an apocalyptic number.

It is an amenable number.

140499969 is a deficient number, since it is larger than the sum of its proper divisors (47983263).

140499969 is a wasteful number, since it uses less digits than its factorization.

140499969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287487.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 140499969 is about 11853.2682834736. The cubic root of 140499969 is about 519.8667915692.

The spelling of 140499969 in words is "one hundred forty million, four hundred ninety-nine thousand, nine hundred sixty-nine".