140405033 has 8 divisors (see below), whose sum is σ = 144230856. Its totient is φ = 136598400.

The previous prime is 140405029. The next prime is 140405051. The reversal of 140405033 is 330504041.

It can be written as a sum of positive squares in 4 ways, for example, as 5914624 + 134490409 = 2432^2 + 11597^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 140405033 - 2² = 140405029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140404996 and 140405014.

It is not an unprimeable number, because it can be changed into a prime (140405053) 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, 10703 + ... + 19883.

It is an arithmetic number, because the mean of its divisors is an integer number (18028857).

Almost surely, 2^140405033 is an apocalyptic number.

It is an amenable number.

140405033 is a deficient number, since it is larger than the sum of its proper divisors (3825823).

140405033 is an equidigital number, since it uses as much as digits as its factorization.

140405033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9595.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 140405033 is about 11849.2629728604. The cubic root of 140405033 is about 519.7496736452.

Adding to 140405033 its reverse (330504041), we get a palindrome (470909074).

The spelling of 140405033 in words is "one hundred forty million, four hundred five thousand, thirty-three".