140304025 has 27 divisors (see below), whose sum is σ = 183652959. Its totient is φ = 106320720.

The previous prime is 140304019. The next prime is 140304089. The reversal of 140304025 is 520403041.

The square root of 140304025 is 11845.

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

It can be written as a sum of positive squares in only one way, i.e., 50509449 + 89794576 = 7107^2 + 9476^2 .

It is not a de Polignac number, because 140304025 - 2¹³ = 140295833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140303993 and 140304011.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1362124 + ... + 1362226.

Almost surely, 2^140304025 is an apocalyptic number.

140304025 is the 11845-th square number.

140304025 is the 5923-rd centered octagonal number.

It is an amenable number.

140304025 is a deficient number, since it is larger than the sum of its proper divisors (43348934).

140304025 is an equidigital number, since it uses as much as digits as its factorization.

140304025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The cubic root of 140304025 is about 519.6250070093.

Adding to 140304025 its reverse (520403041), we get a palindrome (660707066).

The spelling of 140304025 in words is "one hundred forty million, three hundred four thousand, twenty-five".