140311625 has 16 divisors (see below), whose sum is σ = 185412240. Its totient is φ = 105644800.

The previous prime is 140311609. The next prime is 140311669. The reversal of 140311625 is 526113041.

140311625 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 8 ways, for example, as 72726784 + 67584841 = 8528^2 + 8221^2 .

It is not a de Polignac number, because 140311625 - 2⁴ = 140311609 is a prime.

It is a super-2 number, since 2×140311625² = 39374704220281250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140311625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30890 + ... + 35139.

It is an arithmetic number, because the mean of its divisors is an integer number (11588265).

Almost surely, 2^140311625 is an apocalyptic number.

It is an amenable number.

140311625 is a deficient number, since it is larger than the sum of its proper divisors (45100615).

140311625 is an equidigital number, since it uses as much as digits as its factorization.

140311625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66061 (or 66051 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 140311625 is about 11845.3208061242. The cubic root of 140311625 is about 519.6343892033.

Adding to 140311625 its reverse (526113041), we get a palindrome (666424666).

The spelling of 140311625 in words is "one hundred forty million, three hundred eleven thousand, six hundred twenty-five".