140121325 has 6 divisors (see below), whose sum is σ = 173750474. Its totient is φ = 112097040.

The previous prime is 140121299. The next prime is 140121341. The reversal of 140121325 is 523121041.

It can be written as a sum of positive squares in 3 ways, for example, as 3020644 + 137100681 = 1738^2 + 11709^2 .

It is not a de Polignac number, because 140121325 - 2²⁵ = 106566893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2802402 + ... + 2802451.

Almost surely, 2^140121325 is an apocalyptic number.

It is an amenable number.

140121325 is a deficient number, since it is larger than the sum of its proper divisors (33629149).

140121325 is an equidigital number, since it uses as much as digits as its factorization.

140121325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5604863 (or 5604858 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 140121325 is about 11837.2853729223. The cubic root of 140121325 is about 519.3993619596.

Adding to 140121325 its reverse (523121041), we get a palindrome (663242366).

The spelling of 140121325 in words is "one hundred forty million, one hundred twenty-one thousand, three hundred twenty-five".