140369405 has 8 divisors (see below), whose sum is σ = 183756384. Its totient is φ = 102086800.

The previous prime is 140369381. The next prime is 140369407. The reversal of 140369405 is 504963041.

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

It is not a de Polignac number, because 140369405 - 2¹⁴ = 140353021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140369407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1276031 + ... + 1276140.

It is an arithmetic number, because the mean of its divisors is an integer number (22969548).

Almost surely, 2^140369405 is an apocalyptic number.

It is an amenable number.

140369405 is a deficient number, since it is larger than the sum of its proper divisors (43386979).

140369405 is a wasteful number, since it uses less digits than its factorization.

140369405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552187.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 140369405 is about 11847.7594928324. The cubic root of 140369405 is about 519.7057074912.

The spelling of 140369405 in words is "one hundred forty million, three hundred sixty-nine thousand, four hundred five".