1225124135 has 8 divisors (see below), whose sum is σ = 1473854496. Its totient is φ = 977628960.

The previous prime is 1225124119. The next prime is 1225124149. The reversal of 1225124135 is 5314215221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225124135 - 2⁴ = 1225124119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306611 + ... + 310580.

It is an arithmetic number, because the mean of its divisors is an integer number (184231812).

Almost surely, 2^1225124135 is an apocalyptic number.

1225124135 is a deficient number, since it is larger than the sum of its proper divisors (248730361).

1225124135 is an equidigital number, since it uses as much as digits as its factorization.

1225124135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617593.

The product of its digits is 2400, while the sum is 26.

The square root of 1225124135 is about 35001.7733122195. The cubic root of 1225124135 is about 1070.0236216289.

Adding to 1225124135 its reverse (5314215221), we get a palindrome (6539339356).

The spelling of 1225124135 in words is "one billion, two hundred twenty-five million, one hundred twenty-four thousand, one hundred thirty-five".