140156640625 has 27 divisors (see below), whose sum is σ = 175488679681. Its totient is φ = 111938125000.

The previous prime is 140156640619. The next prime is 140156640629. The reversal of 140156640625 is 526046651041.

The square root of 140156640625 is 374375.

It is a perfect power (a square), and thus also a powerful number.

140156640625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 99649442929 + 40507197696 = 315673^2 + 201264^2 .

It is not a de Polignac number, because 140156640625 - 2¹³ = 140156632433 is a prime.

It is a super-3 number, since 3×140156640625³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140156640629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 233984076 + ... + 233984674.

Almost surely, 2^140156640625 is an apocalyptic number.

140156640625 is the 374375-th square number.

140156640625 is the 187188-th centered octagonal number.

It is an amenable number.

140156640625 is a deficient number, since it is larger than the sum of its proper divisors (35332039056).

140156640625 is an frugal number, since it uses more digits than its factorization.

140156640625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 140156640625 in words is "one hundred forty billion, one hundred fifty-six million, six hundred forty thousand, six hundred twenty-five".