1225133135 has 24 divisors (see below), whose sum is σ = 1568278800. Its totient is φ = 918585344.

The previous prime is 1225133099. The next prime is 1225133153. The reversal of 1225133135 is 5313315221.

It is a de Polignac number, because none of the positive numbers 2^k-1225133135 is a prime.

It is a congruent number.

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, 369716 + ... + 373014.

It is an arithmetic number, because the mean of its divisors is an integer number (65344950).

Almost surely, 2^1225133135 is an apocalyptic number.

1225133135 is a deficient number, since it is larger than the sum of its proper divisors (343145665).

1225133135 is a wasteful number, since it uses less digits than its factorization.

1225133135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595 (or 3578 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 1225133135 is about 35001.9018768981. The cubic root of 1225133135 is about 1070.0262418230.

Adding to 1225133135 its reverse (5313315221), we get a palindrome (6538448356).

The spelling of 1225133135 in words is "one billion, two hundred twenty-five million, one hundred thirty-three thousand, one hundred thirty-five".