135250225 has 12 divisors (see below), whose sum is σ = 182957040. Its totient is φ = 98363600.

The previous prime is 135250201. The next prime is 135250261. The reversal of 135250225 is 522052531.

It is a happy number.

It is not a de Polignac number, because 135250225 - 2¹³ = 135242033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 135250225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245635 + ... + 246184.

It is an arithmetic number, because the mean of its divisors is an integer number (15246420).

Almost surely, 2^135250225 is an apocalyptic number.

It is an amenable number.

135250225 is a deficient number, since it is larger than the sum of its proper divisors (47706815).

135250225 is a wasteful number, since it uses less digits than its factorization.

135250225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491840 (or 491835 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 135250225 is about 11629.7130231145. The cubic root of 135250225 is about 513.3095355902.

The spelling of 135250225 in words is "one hundred thirty-five million, two hundred fifty thousand, two hundred twenty-five".