135000025 has 6 divisors (see below), whose sum is σ = 167400062. Its totient is φ = 108000000.

The previous prime is 135000011. The next prime is 135000037. The reversal of 135000025 is 520000531.

It can be written as a sum of positive squares in 3 ways, for example, as 25441936 + 109558089 = 5044^2 + 10467^2 .

It is not a de Polignac number, because 135000025 - 2⁵ = 134999993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134999972 and 135000008.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2699976 + ... + 2700025.

Almost surely, 2^135000025 is an apocalyptic number.

It is an amenable number.

135000025 is a deficient number, since it is larger than the sum of its proper divisors (32400037).

135000025 is an equidigital number, since it uses as much as digits as its factorization.

135000025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400011 (or 5400006 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 135000025 is about 11618.9511144509. The cubic root of 135000025 is about 512.9928156692.

Adding to 135000025 its reverse (520000531), we get a palindrome (655000556).

The spelling of 135000025 in words is "one hundred thirty-five million, twenty-five", and thus it is an aban number.