140321025 has 48 divisors (see below), whose sum is σ = 277621120. Its totient is φ = 69076800.

The previous prime is 140321021. The next prime is 140321081. The reversal of 140321025 is 520123041.

It is not a de Polignac number, because 140321025 - 2² = 140321021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140320989 and 140321007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140321021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 780 + ... + 16770.

Almost surely, 2^140321025 is an apocalyptic number.

140321025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140321025 is a deficient number, since it is larger than the sum of its proper divisors (137300095).

140321025 is a wasteful number, since it uses less digits than its factorization.

140321025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16023 (or 16012 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 140321025 is about 11845.7175806280. The cubic root of 140321025 is about 519.6459930272.

Adding to 140321025 its reverse (520123041), we get a palindrome (660444066).

The spelling of 140321025 in words is "one hundred forty million, three hundred twenty-one thousand, twenty-five".