140725221 has 16 divisors (see below), whose sum is σ = 230934144. Its totient is φ = 74228544.

The previous prime is 140725187. The next prime is 140725279. The reversal of 140725221 is 122527041.

140725221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140725221 - 2⁶ = 140725157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140725191 and 140725200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140725121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257466 + ... + 258011.

It is an arithmetic number, because the mean of its divisors is an integer number (14433384).

Almost surely, 2^140725221 is an apocalyptic number.

It is an amenable number.

140725221 is a deficient number, since it is larger than the sum of its proper divisors (90208923).

140725221 is a wasteful number, since it uses less digits than its factorization.

140725221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515500.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 140725221 is about 11862.7661613976. The cubic root of 140725221 is about 520.1444630676.

The spelling of 140725221 in words is "one hundred forty million, seven hundred twenty-five thousand, two hundred twenty-one".