140530133 has 4 divisors (see below), whose sum is σ = 141037740. Its totient is φ = 140022528.

The previous prime is 140530123. The next prime is 140530193. The reversal of 140530133 is 331035041.

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: 331035041 = 37 ⋅8946893.

It can be written as a sum of positive squares in 2 ways, for example, as 12794929 + 127735204 = 3577^2 + 11302^2 .

It is a cyclic number.

It is not a de Polignac number, because 140530133 - 2¹⁸ = 140267989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140530123) 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, 253388 + ... + 253941.

It is an arithmetic number, because the mean of its divisors is an integer number (35259435).

Almost surely, 2^140530133 is an apocalyptic number.

It is an amenable number.

140530133 is a deficient number, since it is larger than the sum of its proper divisors (507607).

140530133 is an equidigital number, since it uses as much as digits as its factorization.

140530133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507606.

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

The square root of 140530133 is about 11854.5406068730. The cubic root of 140530133 is about 519.9039923837.

Adding to 140530133 its reverse (331035041), we get a palindrome (471565174).

The spelling of 140530133 in words is "one hundred forty million, five hundred thirty thousand, one hundred thirty-three".