1245113122 has 32 divisors (see below), whose sum is σ = 2097373824. Its totient is φ = 549388800.

The previous prime is 1245113083. The next prime is 1245113179. The reversal of 1245113122 is 2213115421.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1245113093 and 1245113102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407922 + ... + 410962.

It is an arithmetic number, because the mean of its divisors is an integer number (65542932).

Almost surely, 2^1245113122 is an apocalyptic number.

1245113122 is a deficient number, since it is larger than the sum of its proper divisors (852260702).

1245113122 is a wasteful number, since it uses less digits than its factorization.

1245113122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3594.

The product of its digits is 480, while the sum is 22.

The square root of 1245113122 is about 35286.1604882141. The cubic root of 1245113122 is about 1075.8117170542.

Adding to 1245113122 its reverse (2213115421), we get a palindrome (3458228543).

The spelling of 1245113122 in words is "one billion, two hundred forty-five million, one hundred thirteen thousand, one hundred twenty-two".