140121133 has 4 divisors (see below), whose sum is σ = 143379808. Its totient is φ = 136862460.

The previous prime is 140121131. The next prime is 140121139. The reversal of 140121133 is 331121041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140121133 - 2¹ = 140121131 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 (140121131) 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, 1629273 + ... + 1629358.

It is an arithmetic number, because the mean of its divisors is an integer number (35844952).

Almost surely, 2^140121133 is an apocalyptic number.

It is an amenable number.

140121133 is a deficient number, since it is larger than the sum of its proper divisors (3258675).

140121133 is an equidigital number, since it uses as much as digits as its factorization.

140121133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258674.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 140121133 is about 11837.2772629520. The cubic root of 140121133 is about 519.3991247254.

Adding to 140121133 its reverse (331121041), we get a palindrome (471242174).

The spelling of 140121133 in words is "one hundred forty million, one hundred twenty-one thousand, one hundred thirty-three".