1245223104 has 56 divisors (see below), whose sum is σ = 3334390080. Its totient is φ = 410068224.

The previous prime is 1245223103. The next prime is 1245223117. The reversal of 1245223104 is 4013225421.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1245223103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23134 + ... + 55005.

It is an arithmetic number, because the mean of its divisors is an integer number (59542680).

Almost surely, 2^1245223104 is an apocalyptic number.

It is an amenable number.

1245223104 is an abundant number, since it is smaller than the sum of its proper divisors (2089166976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245223104 is an equidigital number, since it uses as much as digits as its factorization.

1245223104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78237 (or 78227 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1245223104 is about 35287.7188834869. The cubic root of 1245223104 is about 1075.8433919381.

Adding to 1245223104 its reverse (4013225421), we get a palindrome (5258448525).

The spelling of 1245223104 in words is "one billion, two hundred forty-five million, two hundred twenty-three thousand, one hundred four".