140531033 has 4 divisors (see below), whose sum is σ = 140605668. Its totient is φ = 140456400.

The previous prime is 140531003. The next prime is 140531047. The reversal of 140531033 is 330135041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330135041 = 1327 ⋅248783.

It can be written as a sum of positive squares in 2 ways, for example, as 84400969 + 56130064 = 9187^2 + 7492^2 .

It is a cyclic number.

It is not a de Polignac number, because 140531033 - 2⁸ = 140530777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140530996 and 140531014.

It is not an unprimeable number, because it can be changed into a prime (140531003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34418 + ... + 38283.

It is an arithmetic number, because the mean of its divisors is an integer number (35151417).

Almost surely, 2^140531033 is an apocalyptic number.

It is an amenable number.

140531033 is a deficient number, since it is larger than the sum of its proper divisors (74635).

140531033 is an equidigital number, since it uses as much as digits as its factorization.

140531033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74634.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 140531033 is about 11854.5785669504. The cubic root of 140531033 is about 519.9051022586.

Adding to 140531033 its reverse (330135041), we get a palindrome (470666074).

The spelling of 140531033 in words is "one hundred forty million, five hundred thirty-one thousand, thirty-three".