1225024215 has 16 divisors (see below), whose sum is σ = 2001742848. Its totient is φ = 639444896.

The previous prime is 1225024189. The next prime is 1225024219. The reversal of 1225024215 is 5124205221.

It is a cyclic number.

It is not a de Polignac number, because 1225024215 - 2⁸ = 1225023959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225024219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868107 + ... + 869516.

It is an arithmetic number, because the mean of its divisors is an integer number (125108928).

Almost surely, 2^1225024215 is an apocalyptic number.

1225024215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1225024215 is a deficient number, since it is larger than the sum of its proper divisors (776718633).

1225024215 is a wasteful number, since it uses less digits than its factorization.

1225024215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737678.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1225024215 is about 35000.3459268619. The cubic root of 1225024215 is about 1069.9945307899.

Adding to 1225024215 its reverse (5124205221), we get a palindrome (6349229436).

The spelling of 1225024215 in words is "one billion, two hundred twenty-five million, twenty-four thousand, two hundred fifteen".