210135025 has 24 divisors (see below), whose sum is σ = 268772480. Its totient is φ = 162855360.

The previous prime is 210135007. The next prime is 210135043. The reversal of 210135025 is 520531012.

It is an interprime number because it is at equal distance from previous prime (210135007) and next prime (210135043).

It is not a de Polignac number, because 210135025 - 2⁹ = 210134513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210134993 and 210135011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339166 + ... + 339784.

Almost surely, 2^210135025 is an apocalyptic number.

210135025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

210135025 is a deficient number, since it is larger than the sum of its proper divisors (58637455).

210135025 is a wasteful number, since it uses less digits than its factorization.

210135025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 210135025 is about 14496.0348026624. The cubic root of 210135025 is about 594.5195613256.

Adding to 210135025 its reverse (520531012), we get a palindrome (730666037).

The spelling of 210135025 in words is "two hundred ten million, one hundred thirty-five thousand, twenty-five".