1223014525 has 6 divisors (see below), whose sum is σ = 1516538042. Its totient is φ = 978411600.

The previous prime is 1223014519. The next prime is 1223014537. The reversal of 1223014525 is 5254103221.

It can be written as a sum of positive squares in 3 ways, for example, as 17397241 + 1205617284 = 4171^2 + 34722^2 .

It is not a de Polignac number, because 1223014525 - 2³ = 1223014517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 48920581 = 1223014525 / (1 + 2 + 2 + 3 + 0 + 1 + 4 + 5 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223014525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24460266 + ... + 24460315.

Almost surely, 2^1223014525 is an apocalyptic number.

It is an amenable number.

1223014525 is a deficient number, since it is larger than the sum of its proper divisors (293523517).

1223014525 is an equidigital number, since it uses as much as digits as its factorization.

1223014525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48920591 (or 48920586 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1223014525 is about 34971.6245690703. The cubic root of 1223014525 is about 1069.4090908548.

Adding to 1223014525 its reverse (5254103221), we get a palindrome (6477117746).

The spelling of 1223014525 in words is "one billion, two hundred twenty-three million, fourteen thousand, five hundred twenty-five".